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Finding the Fourth Proportional to 438,799.50, 658,199.25 and 106,375.50

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Solution

The fourth proportional to 438,799.50, 658,199.25 and 106,375.50 is: 159,563.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,799.50 : 658,199.25 = 106,375.50 : x
  2. Step 2: Convert to fraction form
    438,799.50/658,199.25 = 106,375.50/x
  3. Step 3: Cross multiply
    438,799.50x = 658,199.25 × 106,375.50
  4. Step 4: Simplify right side
    438,799.50x = 70,016,274,318.38
  5. Step 5: Solve for x
    x = 70,016,274,318.38/438,799.50
  6. Step 6: Final answer
    x = 159,563.25

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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.