Home / 231,899.20-347,654.40-121,091.20

Finding the Fourth Proportional to 231,899.20, 347,654.40 and 121,091.20

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Solution

The fourth proportional to 231,899.20, 347,654.40 and 121,091.20 is: 181,535.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,899.20 : 347,654.40 = 121,091.20 : x
  2. Step 2: Convert to fraction form
    231,899.20/347,654.40 = 121,091.20/x
  3. Step 3: Cross multiply
    231,899.20x = 347,654.40 × 121,091.20
  4. Step 4: Simplify right side
    231,899.20x = 42,097,888,481.28
  5. Step 5: Solve for x
    x = 42,097,888,481.28/231,899.20
  6. Step 6: Final answer
    x = 181,535.29

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.