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Finding the Fourth Proportional to 372,159.90, 513,664.50 and 227,014.87

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Solution

The fourth proportional to 372,159.90, 513,664.50 and 227,014.87 is: 313,331.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,159.90 : 513,664.50 = 227,014.87 : x
  2. Step 2: Convert to fraction form
    372,159.90/513,664.50 = 227,014.87/x
  3. Step 3: Cross multiply
    372,159.90x = 513,664.50 × 227,014.87
  4. Step 4: Simplify right side
    372,159.90x = 116,609,479,691.12
  5. Step 5: Solve for x
    x = 116,609,479,691.12/372,159.90
  6. Step 6: Final answer
    x = 313,331.66

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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.