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Finding the Fourth Proportional to 397,065.92, 547,949.17 and 215,774.42

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Solution

The fourth proportional to 397,065.92, 547,949.17 and 215,774.42 is: 297,767.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,065.92 : 547,949.17 = 215,774.42 : x
  2. Step 2: Convert to fraction form
    397,065.92/547,949.17 = 215,774.42/x
  3. Step 3: Cross multiply
    397,065.92x = 547,949.17 × 215,774.42
  4. Step 4: Simplify right side
    397,065.92x = 118,233,414,346.23
  5. Step 5: Solve for x
    x = 118,233,414,346.23/397,065.92
  6. Step 6: Final answer
    x = 297,767.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.