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Finding the Fourth Proportional to 373,484.31, 515,403.86 and 203,714.79

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Solution

The fourth proportional to 373,484.31, 515,403.86 and 203,714.79 is: 281,123.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,484.31 : 515,403.86 = 203,714.79 : x
  2. Step 2: Convert to fraction form
    373,484.31/515,403.86 = 203,714.79/x
  3. Step 3: Cross multiply
    373,484.31x = 515,403.86 × 203,714.79
  4. Step 4: Simplify right side
    373,484.31x = 104,995,388,086.52
  5. Step 5: Solve for x
    x = 104,995,388,086.52/373,484.31
  6. Step 6: Final answer
    x = 281,123.96

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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.