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Finding the Fourth Proportional to 372,491.52, 513,750 and 251,441.12

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Solution

The fourth proportional to 372,491.52, 513,750 and 251,441.12 is: 346,794.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,491.52 : 513,750 = 251,441.12 : x
  2. Step 2: Convert to fraction form
    372,491.52/513,750 = 251,441.12/x
  3. Step 3: Cross multiply
    372,491.52x = 513,750 × 251,441.12
  4. Step 4: Simplify right side
    372,491.52x = 129,177,875,400
  5. Step 5: Solve for x
    x = 129,177,875,400/372,491.52
  6. Step 6: Final answer
    x = 346,794.14

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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.