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Finding the Fourth Proportional to 478,084.39, 717,179.13 and 158,119.71

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Solution

The fourth proportional to 478,084.39, 717,179.13 and 158,119.71 is: 237,196.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,084.39 : 717,179.13 = 158,119.71 : x
  2. Step 2: Convert to fraction form
    478,084.39/717,179.13 = 158,119.71/x
  3. Step 3: Cross multiply
    478,084.39x = 717,179.13 × 158,119.71
  4. Step 4: Simplify right side
    478,084.39x = 113,400,156,053.65
  5. Step 5: Solve for x
    x = 113,400,156,053.65/478,084.39
  6. Step 6: Final answer
    x = 237,196.94

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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.