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Finding the Fourth Proportional to 392,696, 541,901.04 and 239,557.40

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Solution

The fourth proportional to 392,696, 541,901.04 and 239,557.40 is: 330,577.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,696 : 541,901.04 = 239,557.40 : x
  2. Step 2: Convert to fraction form
    392,696/541,901.04 = 239,557.40/x
  3. Step 3: Cross multiply
    392,696x = 541,901.04 × 239,557.40
  4. Step 4: Simplify right side
    392,696x = 129,816,404,199.70
  5. Step 5: Solve for x
    x = 129,816,404,199.70/392,696
  6. Step 6: Final answer
    x = 330,577.35

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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.