Home / 392,853.03-542,122.84-240,146.97

Finding the Fourth Proportional to 392,853.03, 542,122.84 and 240,146.97

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Solution

The fourth proportional to 392,853.03, 542,122.84 and 240,146.97 is: 331,394.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,853.03 : 542,122.84 = 240,146.97 : x
  2. Step 2: Convert to fraction form
    392,853.03/542,122.84 = 240,146.97/x
  3. Step 3: Cross multiply
    392,853.03x = 542,122.84 × 240,146.97
  4. Step 4: Simplify right side
    392,853.03x = 130,189,157,393.80
  5. Step 5: Solve for x
    x = 130,189,157,393.80/392,853.03
  6. Step 6: Final answer
    x = 331,394.05

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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.