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Finding the Fourth Proportional to 508,635.70, 762,953.55 and 153,612.70

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Solution

The fourth proportional to 508,635.70, 762,953.55 and 153,612.70 is: 230,419.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,635.70 : 762,953.55 = 153,612.70 : x
  2. Step 2: Convert to fraction form
    508,635.70/762,953.55 = 153,612.70/x
  3. Step 3: Cross multiply
    508,635.70x = 762,953.55 × 153,612.70
  4. Step 4: Simplify right side
    508,635.70x = 117,199,354,790.09
  5. Step 5: Solve for x
    x = 117,199,354,790.09/508,635.70
  6. Step 6: Final answer
    x = 230,419.05

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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.