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Finding the Fourth Proportional to 290,191.12, 400,502.92 and 162,873.76

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Solution

The fourth proportional to 290,191.12, 400,502.92 and 162,873.76 is: 224,787.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,191.12 : 400,502.92 = 162,873.76 : x
  2. Step 2: Convert to fraction form
    290,191.12/400,502.92 = 162,873.76/x
  3. Step 3: Cross multiply
    290,191.12x = 400,502.92 × 162,873.76
  4. Step 4: Simplify right side
    290,191.12x = 65,231,416,471.38
  5. Step 5: Solve for x
    x = 65,231,416,471.38/290,191.12
  6. Step 6: Final answer
    x = 224,787.78

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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.