Home / 215,934.17-297,988.38-120,440.79

Finding the Fourth Proportional to 215,934.17, 297,988.38 and 120,440.79

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Solution

The fourth proportional to 215,934.17, 297,988.38 and 120,440.79 is: 166,207.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,934.17 : 297,988.38 = 120,440.79 : x
  2. Step 2: Convert to fraction form
    215,934.17/297,988.38 = 120,440.79/x
  3. Step 3: Cross multiply
    215,934.17x = 297,988.38 × 120,440.79
  4. Step 4: Simplify right side
    215,934.17x = 35,889,955,898.02
  5. Step 5: Solve for x
    x = 35,889,955,898.02/215,934.17
  6. Step 6: Final answer
    x = 166,207.86

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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.