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Finding the Fourth Proportional to 508,620.20, 762,930.30 and 153,597.20

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Solution

The fourth proportional to 508,620.20, 762,930.30 and 153,597.20 is: 230,395.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,620.20 : 762,930.30 = 153,597.20 : x
  2. Step 2: Convert to fraction form
    508,620.20/762,930.30 = 153,597.20/x
  3. Step 3: Cross multiply
    508,620.20x = 762,930.30 × 153,597.20
  4. Step 4: Simplify right side
    508,620.20x = 117,183,957,875.16
  5. Step 5: Solve for x
    x = 117,183,957,875.16/508,620.20
  6. Step 6: Final answer
    x = 230,395.80

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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.