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Finding the Fourth Proportional to 373,382.82, 515,254.56 and 203,613.30

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Solution

The fourth proportional to 373,382.82, 515,254.56 and 203,613.30 is: 280,978.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,382.82 : 515,254.56 = 203,613.30 : x
  2. Step 2: Convert to fraction form
    373,382.82/515,254.56 = 203,613.30/x
  3. Step 3: Cross multiply
    373,382.82x = 515,254.56 × 203,613.30
  4. Step 4: Simplify right side
    373,382.82x = 104,912,681,301.65
  5. Step 5: Solve for x
    x = 104,912,681,301.65/373,382.82
  6. Step 6: Final answer
    x = 280,978.87

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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.