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Finding the Fourth Proportional to 438,696.97, 658,045.46 and 158,214.22

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Solution

The fourth proportional to 438,696.97, 658,045.46 and 158,214.22 is: 237,321.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,696.97 : 658,045.46 = 158,214.22 : x
  2. Step 2: Convert to fraction form
    438,696.97/658,045.46 = 158,214.22/x
  3. Step 3: Cross multiply
    438,696.97x = 658,045.46 × 158,214.22
  4. Step 4: Simplify right side
    438,696.97x = 104,112,149,178.44
  5. Step 5: Solve for x
    x = 104,112,149,178.44/438,696.97
  6. Step 6: Final answer
    x = 237,321.33

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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.