Home / 215,943.28-298,002.18-120,447.52

Finding the Fourth Proportional to 215,943.28, 298,002.18 and 120,447.52

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Solution

The fourth proportional to 215,943.28, 298,002.18 and 120,447.52 is: 166,217.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,943.28 : 298,002.18 = 120,447.52 : x
  2. Step 2: Convert to fraction form
    215,943.28/298,002.18 = 120,447.52/x
  3. Step 3: Cross multiply
    215,943.28x = 298,002.18 × 120,447.52
  4. Step 4: Simplify right side
    215,943.28x = 35,893,623,535.59
  5. Step 5: Solve for x
    x = 35,893,623,535.59/215,943.28
  6. Step 6: Final answer
    x = 166,217.83

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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.