Home / 215,358.09-323,083.28-65,610.43

Finding the Fourth Proportional to 215,358.09, 323,083.28 and 65,610.43

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Solution

The fourth proportional to 215,358.09, 323,083.28 and 65,610.43 is: 98,429.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,358.09 : 323,083.28 = 65,610.43 : x
  2. Step 2: Convert to fraction form
    215,358.09/323,083.28 = 65,610.43/x
  3. Step 3: Cross multiply
    215,358.09x = 323,083.28 × 65,610.43
  4. Step 4: Simplify right side
    215,358.09x = 21,197,632,926.61
  5. Step 5: Solve for x
    x = 21,197,632,926.61/215,358.09
  6. Step 6: Final answer
    x = 98,429.70

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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.