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Finding the Fourth Proportional to 392,674.40, 541,876.26 and 239,968.14

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Solution

The fourth proportional to 392,674.40, 541,876.26 and 239,968.14 is: 331,147.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,674.40 : 541,876.26 = 239,968.14 : x
  2. Step 2: Convert to fraction form
    392,674.40/541,876.26 = 239,968.14/x
  3. Step 3: Cross multiply
    392,674.40x = 541,876.26 × 239,968.14
  4. Step 4: Simplify right side
    392,674.40x = 130,033,038,222.36
  5. Step 5: Solve for x
    x = 130,033,038,222.36/392,674.40
  6. Step 6: Final answer
    x = 331,147.23

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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.