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Finding the Fourth Proportional to 525,460.40, 788,190.60 and 146,380.40

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Solution

The fourth proportional to 525,460.40, 788,190.60 and 146,380.40 is: 219,570.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    525,460.40 : 788,190.60 = 146,380.40 : x
  2. Step 2: Convert to fraction form
    525,460.40/788,190.60 = 146,380.40/x
  3. Step 3: Cross multiply
    525,460.40x = 788,190.60 × 146,380.40
  4. Step 4: Simplify right side
    525,460.40x = 115,375,655,304.24
  5. Step 5: Solve for x
    x = 115,375,655,304.24/525,460.40
  6. Step 6: Final answer
    x = 219,570.60

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.