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Finding the Fourth Proportional to 253,287.48, 379,680.66 and 119,933.40

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Solution

The fourth proportional to 253,287.48, 379,680.66 and 119,933.40 is: 179,781.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,287.48 : 379,680.66 = 119,933.40 : x
  2. Step 2: Convert to fraction form
    253,287.48/379,680.66 = 119,933.40/x
  3. Step 3: Cross multiply
    253,287.48x = 379,680.66 × 119,933.40
  4. Step 4: Simplify right side
    253,287.48x = 45,536,392,468.04
  5. Step 5: Solve for x
    x = 45,536,392,468.04/253,287.48
  6. Step 6: Final answer
    x = 179,781.46

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.