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Finding the Fourth Proportional to 486,618.87, 729,386.28 and 202,150.92

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Solution

The fourth proportional to 486,618.87, 729,386.28 and 202,150.92 is: 303,001.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,618.87 : 729,386.28 = 202,150.92 : x
  2. Step 2: Convert to fraction form
    486,618.87/729,386.28 = 202,150.92/x
  3. Step 3: Cross multiply
    486,618.87x = 729,386.28 × 202,150.92
  4. Step 4: Simplify right side
    486,618.87x = 147,446,107,537.38
  5. Step 5: Solve for x
    x = 147,446,107,537.38/486,618.87
  6. Step 6: Final answer
    x = 303,001.21

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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.