Home / 392,145.12-541,276.14-231,052.20

Finding the Fourth Proportional to 392,145.12, 541,276.14 and 231,052.20

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Solution

The fourth proportional to 392,145.12, 541,276.14 and 231,052.20 is: 318,920.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,145.12 : 541,276.14 = 231,052.20 : x
  2. Step 2: Convert to fraction form
    392,145.12/541,276.14 = 231,052.20/x
  3. Step 3: Cross multiply
    392,145.12x = 541,276.14 × 231,052.20
  4. Step 4: Simplify right side
    392,145.12x = 125,063,042,954.51
  5. Step 5: Solve for x
    x = 125,063,042,954.51/392,145.12
  6. Step 6: Final answer
    x = 318,920.31

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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.