Home / 392,132.64-541,191.12-230,979.36

Finding the Fourth Proportional to 392,132.64, 541,191.12 and 230,979.36

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Solution

The fourth proportional to 392,132.64, 541,191.12 and 230,979.36 is: 318,779.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,132.64 : 541,191.12 = 230,979.36 : x
  2. Step 2: Convert to fraction form
    392,132.64/541,191.12 = 230,979.36/x
  3. Step 3: Cross multiply
    392,132.64x = 541,191.12 × 230,979.36
  4. Step 4: Simplify right side
    392,132.64x = 125,003,978,535.28
  5. Step 5: Solve for x
    x = 125,003,978,535.28/392,132.64
  6. Step 6: Final answer
    x = 318,779.84

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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.