Home / 392,965.02-542,259.36-231,826.86

Finding the Fourth Proportional to 392,965.02, 542,259.36 and 231,826.86

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Solution

The fourth proportional to 392,965.02, 542,259.36 and 231,826.86 is: 319,901.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,965.02 : 542,259.36 = 231,826.86 : x
  2. Step 2: Convert to fraction form
    392,965.02/542,259.36 = 231,826.86/x
  3. Step 3: Cross multiply
    392,965.02x = 542,259.36 × 231,826.86
  4. Step 4: Simplify right side
    392,965.02x = 125,710,284,734.41
  5. Step 5: Solve for x
    x = 125,710,284,734.41/392,965.02
  6. Step 6: Final answer
    x = 319,901.97

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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.