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Finding the Fourth Proportional to 288,445.50, 397,796.22 and 240,207.17

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Solution

The fourth proportional to 288,445.50, 397,796.22 and 240,207.17 is: 331,270.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,445.50 : 397,796.22 = 240,207.17 : x
  2. Step 2: Convert to fraction form
    288,445.50/397,796.22 = 240,207.17/x
  3. Step 3: Cross multiply
    288,445.50x = 397,796.22 × 240,207.17
  4. Step 4: Simplify right side
    288,445.50x = 95,553,502,253.92
  5. Step 5: Solve for x
    x = 95,553,502,253.92/288,445.50
  6. Step 6: Final answer
    x = 331,270.56

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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.