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Finding the Fourth Proportional to 664,874.92, 997,312.33 and 166,238.92

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Solution

The fourth proportional to 664,874.92, 997,312.33 and 166,238.92 is: 249,358.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,874.92 : 997,312.33 = 166,238.92 : x
  2. Step 2: Convert to fraction form
    664,874.92/997,312.33 = 166,238.92/x
  3. Step 3: Cross multiply
    664,874.92x = 997,312.33 × 166,238.92
  4. Step 4: Simplify right side
    664,874.92x = 165,792,124,641.88
  5. Step 5: Solve for x
    x = 165,792,124,641.88/664,874.92
  6. Step 6: Final answer
    x = 249,358.37

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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.