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Finding the Fourth Proportional to 392,321.28, 541,415.68 and 241,505.28

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Solution

The fourth proportional to 392,321.28, 541,415.68 and 241,505.28 is: 333,284.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,321.28 : 541,415.68 = 241,505.28 : x
  2. Step 2: Convert to fraction form
    392,321.28/541,415.68 = 241,505.28/x
  3. Step 3: Cross multiply
    392,321.28x = 541,415.68 × 241,505.28
  4. Step 4: Simplify right side
    392,321.28x = 130,754,745,394.79
  5. Step 5: Solve for x
    x = 130,754,745,394.79/392,321.28
  6. Step 6: Final answer
    x = 333,284.87

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1.5x scale

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.