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Finding the Fourth Proportional to 373,486.32, 515,418.14 and 203,726.52

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Solution

The fourth proportional to 373,486.32, 515,418.14 and 203,726.52 is: 281,146.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,486.32 : 515,418.14 = 203,726.52 : x
  2. Step 2: Convert to fraction form
    373,486.32/515,418.14 = 203,726.52/x
  3. Step 3: Cross multiply
    373,486.32x = 515,418.14 × 203,726.52
  4. Step 4: Simplify right side
    373,486.32x = 105,004,344,007.07
  5. Step 5: Solve for x
    x = 105,004,344,007.07/373,486.32
  6. Step 6: Final answer
    x = 281,146.43

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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.