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Finding the Fourth Proportional to 478,068, 717,134.82 and 158,219.28

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Solution

The fourth proportional to 478,068, 717,134.82 and 158,219.28 is: 237,339.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,068 : 717,134.82 = 158,219.28 : x
  2. Step 2: Convert to fraction form
    478,068/717,134.82 = 158,219.28/x
  3. Step 3: Cross multiply
    478,068x = 717,134.82 × 158,219.28
  4. Step 4: Simplify right side
    478,068x = 113,464,554,883.33
  5. Step 5: Solve for x
    x = 113,464,554,883.33/478,068
  6. Step 6: Final answer
    x = 237,339.78

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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.