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Finding the Fourth Proportional to 438,792.75, 658,189.13 and 106,368.75

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Solution

The fourth proportional to 438,792.75, 658,189.13 and 106,368.75 is: 159,553.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,792.75 : 658,189.13 = 106,368.75 : x
  2. Step 2: Convert to fraction form
    438,792.75/658,189.13 = 106,368.75/x
  3. Step 3: Cross multiply
    438,792.75x = 658,189.13 × 106,368.75
  4. Step 4: Simplify right side
    438,792.75x = 70,010,754,489.84
  5. Step 5: Solve for x
    x = 70,010,754,489.84/438,792.75
  6. Step 6: Final answer
    x = 159,553.13

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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.