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Finding the Fourth Proportional to 658,153.69, 987,230.53 and 159,517.69

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Solution

The fourth proportional to 658,153.69, 987,230.53 and 159,517.69 is: 239,276.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,153.69 : 987,230.53 = 159,517.69 : x
  2. Step 2: Convert to fraction form
    658,153.69/987,230.53 = 159,517.69/x
  3. Step 3: Cross multiply
    658,153.69x = 987,230.53 × 159,517.69
  4. Step 4: Simplify right side
    658,153.69x = 157,480,731,374.40
  5. Step 5: Solve for x
    x = 157,480,731,374.40/658,153.69
  6. Step 6: Final answer
    x = 239,276.53

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Double scale
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Similar ratio
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1.5x scale

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.