Home / 218,785.43-328,233.50-61,013.88

Finding the Fourth Proportional to 218,785.43, 328,233.50 and 61,013.88

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Solution

The fourth proportional to 218,785.43, 328,233.50 and 61,013.88 is: 91,536.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,785.43 : 328,233.50 = 61,013.88 : x
  2. Step 2: Convert to fraction form
    218,785.43/328,233.50 = 61,013.88/x
  3. Step 3: Cross multiply
    218,785.43x = 328,233.50 × 61,013.88
  4. Step 4: Simplify right side
    218,785.43x = 20,026,800,485.27
  5. Step 5: Solve for x
    x = 20,026,800,485.27/218,785.43
  6. Step 6: Final answer
    x = 91,536.26

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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.