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Finding the Fourth Proportional to 438,759.16, 658,002.64 and 158,239.96

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Solution

The fourth proportional to 438,759.16, 658,002.64 and 158,239.96 is: 237,310.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,759.16 : 658,002.64 = 158,239.96 : x
  2. Step 2: Convert to fraction form
    438,759.16/658,002.64 = 158,239.96/x
  3. Step 3: Cross multiply
    438,759.16x = 658,002.64 × 158,239.96
  4. Step 4: Simplify right side
    438,759.16x = 104,122,311,433.49
  5. Step 5: Solve for x
    x = 104,122,311,433.49/438,759.16
  6. Step 6: Final answer
    x = 237,310.86

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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.