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Finding the Fourth Proportional to 539,637.73, 809,315.55 and 160,456.34

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Solution

The fourth proportional to 539,637.73, 809,315.55 and 160,456.34 is: 240,642.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,637.73 : 809,315.55 = 160,456.34 : x
  2. Step 2: Convert to fraction form
    539,637.73/809,315.55 = 160,456.34/x
  3. Step 3: Cross multiply
    539,637.73x = 809,315.55 × 160,456.34
  4. Step 4: Simplify right side
    539,637.73x = 129,859,813,081.38
  5. Step 5: Solve for x
    x = 129,859,813,081.38/539,637.73
  6. Step 6: Final answer
    x = 240,642.58

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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.