Home / 392,877.10-542,155.98-240,171.04

Finding the Fourth Proportional to 392,877.10, 542,155.98 and 240,171.04

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Solution

The fourth proportional to 392,877.10, 542,155.98 and 240,171.04 is: 331,427.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    392,877.10 : 542,155.98 = 240,171.04 : x
  2. Step 2: Convert to fraction form
    392,877.10/542,155.98 = 240,171.04/x
  3. Step 3: Cross multiply
    392,877.10x = 542,155.98 × 240,171.04
  4. Step 4: Simplify right side
    392,877.10x = 130,210,165,558.82
  5. Step 5: Solve for x
    x = 130,210,165,558.82/392,877.10
  6. Step 6: Final answer
    x = 331,427.22

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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.