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Finding the Fourth Proportional to 392,308.58, 588,375.30 and 181,919.18

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Solution

The fourth proportional to 392,308.58, 588,375.30 and 181,919.18 is: 272,838.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,308.58 : 588,375.30 = 181,919.18 : x
  2. Step 2: Convert to fraction form
    392,308.58/588,375.30 = 181,919.18/x
  3. Step 3: Cross multiply
    392,308.58x = 588,375.30 × 181,919.18
  4. Step 4: Simplify right side
    392,308.58x = 107,036,754,261.39
  5. Step 5: Solve for x
    x = 107,036,754,261.39/392,308.58
  6. Step 6: Final answer
    x = 272,838.17

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.