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Finding the Fourth Proportional to 240,665.92, 332,212 and 215,471.68

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Solution

The fourth proportional to 240,665.92, 332,212 and 215,471.68 is: 297,434.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,665.92 : 332,212 = 215,471.68 : x
  2. Step 2: Convert to fraction form
    240,665.92/332,212 = 215,471.68/x
  3. Step 3: Cross multiply
    240,665.92x = 332,212 × 215,471.68
  4. Step 4: Simplify right side
    240,665.92x = 71,582,277,756.16
  5. Step 5: Solve for x
    x = 71,582,277,756.16/240,665.92
  6. Step 6: Final answer
    x = 297,434.21

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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.