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Finding the Fourth Proportional to 486,842.40, 730,263.60 and 131,900.40

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Solution

The fourth proportional to 486,842.40, 730,263.60 and 131,900.40 is: 197,850.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,842.40 : 730,263.60 = 131,900.40 : x
  2. Step 2: Convert to fraction form
    486,842.40/730,263.60 = 131,900.40/x
  3. Step 3: Cross multiply
    486,842.40x = 730,263.60 × 131,900.40
  4. Step 4: Simplify right side
    486,842.40x = 96,322,060,945.44
  5. Step 5: Solve for x
    x = 96,322,060,945.44/486,842.40
  6. Step 6: Final answer
    x = 197,850.60

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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.