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Finding the Fourth Proportional to 373,486.72, 515,418.88 and 203,727.04

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Solution

The fourth proportional to 373,486.72, 515,418.88 and 203,727.04 is: 281,147.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,486.72 : 515,418.88 = 203,727.04 : x
  2. Step 2: Convert to fraction form
    373,486.72/515,418.88 = 203,727.04/x
  3. Step 3: Cross multiply
    373,486.72x = 515,418.88 × 203,727.04
  4. Step 4: Simplify right side
    373,486.72x = 105,004,762,782.52
  5. Step 5: Solve for x
    x = 105,004,762,782.52/373,486.72
  6. Step 6: Final answer
    x = 281,147.25

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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.