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Finding the Fourth Proportional to 575,460.20, 863,190.30 and 148,995.20

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Solution

The fourth proportional to 575,460.20, 863,190.30 and 148,995.20 is: 223,492.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    575,460.20 : 863,190.30 = 148,995.20 : x
  2. Step 2: Convert to fraction form
    575,460.20/863,190.30 = 148,995.20/x
  3. Step 3: Cross multiply
    575,460.20x = 863,190.30 × 148,995.20
  4. Step 4: Simplify right side
    575,460.20x = 128,611,211,386.56
  5. Step 5: Solve for x
    x = 128,611,211,386.56/575,460.20
  6. Step 6: Final answer
    x = 223,492.80

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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.