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Finding the Fourth Proportional to 508,339.86, 762,515.27 and 153,356.96

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Solution

The fourth proportional to 508,339.86, 762,515.27 and 153,356.96 is: 230,037.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,339.86 : 762,515.27 = 153,356.96 : x
  2. Step 2: Convert to fraction form
    508,339.86/762,515.27 = 153,356.96/x
  3. Step 3: Cross multiply
    508,339.86x = 762,515.27 × 153,356.96
  4. Step 4: Simplify right side
    508,339.86x = 116,937,023,760.78
  5. Step 5: Solve for x
    x = 116,937,023,760.78/508,339.86
  6. Step 6: Final answer
    x = 230,037.09

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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.