Home / 218,405.10-327,618.45-113,429.10

Finding the Fourth Proportional to 218,405.10, 327,618.45 and 113,429.10

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Solution

The fourth proportional to 218,405.10, 327,618.45 and 113,429.10 is: 170,149.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,405.10 : 327,618.45 = 113,429.10 : x
  2. Step 2: Convert to fraction form
    218,405.10/327,618.45 = 113,429.10/x
  3. Step 3: Cross multiply
    218,405.10x = 327,618.45 × 113,429.10
  4. Step 4: Simplify right side
    218,405.10x = 37,161,465,926.90
  5. Step 5: Solve for x
    x = 37,161,465,926.90/218,405.10
  6. Step 6: Final answer
    x = 170,149.26

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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.