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Finding the Fourth Proportional to 658,226.25, 987,339.51 and 159,590.25

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Solution

The fourth proportional to 658,226.25, 987,339.51 and 159,590.25 is: 239,385.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,226.25 : 987,339.51 = 159,590.25 : x
  2. Step 2: Convert to fraction form
    658,226.25/987,339.51 = 159,590.25/x
  3. Step 3: Cross multiply
    658,226.25x = 987,339.51 × 159,590.25
  4. Step 4: Simplify right side
    658,226.25x = 157,569,759,235.78
  5. Step 5: Solve for x
    x = 157,569,759,235.78/658,226.25
  6. Step 6: Final answer
    x = 239,385.41

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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.