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Finding the Fourth Proportional to 240,798.76, 332,304.78 and 145,287

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Solution

The fourth proportional to 240,798.76, 332,304.78 and 145,287 is: 200,497.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,798.76 : 332,304.78 = 145,287 : x
  2. Step 2: Convert to fraction form
    240,798.76/332,304.78 = 145,287/x
  3. Step 3: Cross multiply
    240,798.76x = 332,304.78 × 145,287
  4. Step 4: Simplify right side
    240,798.76x = 48,279,564,571.86
  5. Step 5: Solve for x
    x = 48,279,564,571.86/240,798.76
  6. Step 6: Final answer
    x = 200,497.56

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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.