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Finding the Fourth Proportional to 425,310.92, 637,945.18 and 159,051.86

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Solution

The fourth proportional to 425,310.92, 637,945.18 and 159,051.86 is: 238,569.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    425,310.92 : 637,945.18 = 159,051.86 : x
  2. Step 2: Convert to fraction form
    425,310.92/637,945.18 = 159,051.86/x
  3. Step 3: Cross multiply
    425,310.92x = 637,945.18 × 159,051.86
  4. Step 4: Simplify right side
    425,310.92x = 101,466,367,457.04
  5. Step 5: Solve for x
    x = 101,466,367,457.04/425,310.92
  6. Step 6: Final answer
    x = 238,569.86

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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.