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Finding the Fourth Proportional to 539,129.34, 808,555.64 and 159,960.38

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Solution

The fourth proportional to 539,129.34, 808,555.64 and 159,960.38 is: 239,899.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,129.34 : 808,555.64 = 159,960.38 : x
  2. Step 2: Convert to fraction form
    539,129.34/808,555.64 = 159,960.38/x
  3. Step 3: Cross multiply
    539,129.34x = 808,555.64 × 159,960.38
  4. Step 4: Simplify right side
    539,129.34x = 129,336,862,582.96
  5. Step 5: Solve for x
    x = 129,336,862,582.96/539,129.34
  6. Step 6: Final answer
    x = 239,899.51

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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.