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Finding the Fourth Proportional to 372,379.68, 513,893.16 and 202,623.12

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Solution

The fourth proportional to 372,379.68, 513,893.16 and 202,623.12 is: 279,624.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    372,379.68 : 513,893.16 = 202,623.12 : x
  2. Step 2: Convert to fraction form
    372,379.68/513,893.16 = 202,623.12/x
  3. Step 3: Cross multiply
    372,379.68x = 513,893.16 × 202,623.12
  4. Step 4: Simplify right side
    372,379.68x = 104,126,635,425.86
  5. Step 5: Solve for x
    x = 104,126,635,425.86/372,379.68
  6. Step 6: Final answer
    x = 279,624.91

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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.