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Finding the Fourth Proportional to 282,673.78, 424,008.51 and 72,311.38

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Solution

The fourth proportional to 282,673.78, 424,008.51 and 72,311.38 is: 108,466.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,673.78 : 424,008.51 = 72,311.38 : x
  2. Step 2: Convert to fraction form
    282,673.78/424,008.51 = 72,311.38/x
  3. Step 3: Cross multiply
    282,673.78x = 424,008.51 × 72,311.38
  4. Step 4: Simplify right side
    282,673.78x = 30,660,640,489.84
  5. Step 5: Solve for x
    x = 30,660,640,489.84/282,673.78
  6. Step 6: Final answer
    x = 108,466.52

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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.