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Finding the Fourth Proportional to 373,565.76, 515,499.76 and 212,398.08

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Solution

The fourth proportional to 373,565.76, 515,499.76 and 212,398.08 is: 293,097.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,565.76 : 515,499.76 = 212,398.08 : x
  2. Step 2: Convert to fraction form
    373,565.76/515,499.76 = 212,398.08/x
  3. Step 3: Cross multiply
    373,565.76x = 515,499.76 × 212,398.08
  4. Step 4: Simplify right side
    373,565.76x = 109,491,159,264.46
  5. Step 5: Solve for x
    x = 109,491,159,264.46/373,565.76
  6. Step 6: Final answer
    x = 293,097.42

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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.