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Finding the Fourth Proportional to 282,018.92, 423,139.14 and 124,136.69

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Solution

The fourth proportional to 282,018.92, 423,139.14 and 124,136.69 is: 186,253.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,018.92 : 423,139.14 = 124,136.69 : x
  2. Step 2: Convert to fraction form
    282,018.92/423,139.14 = 124,136.69/x
  3. Step 3: Cross multiply
    282,018.92x = 423,139.14 × 124,136.69
  4. Step 4: Simplify right side
    282,018.92x = 52,527,090,133.35
  5. Step 5: Solve for x
    x = 52,527,090,133.35/282,018.92
  6. Step 6: Final answer
    x = 186,253.78

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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.