Home / 217,347.20-299,951.52-121,849.28

Finding the Fourth Proportional to 217,347.20, 299,951.52 and 121,849.28

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Solution

The fourth proportional to 217,347.20, 299,951.52 and 121,849.28 is: 168,158.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,347.20 : 299,951.52 = 121,849.28 : x
  2. Step 2: Convert to fraction form
    217,347.20/299,951.52 = 121,849.28/x
  3. Step 3: Cross multiply
    217,347.20x = 299,951.52 × 121,849.28
  4. Step 4: Simplify right side
    217,347.20x = 36,548,876,746.91
  5. Step 5: Solve for x
    x = 36,548,876,746.91/217,347.20
  6. Step 6: Final answer
    x = 168,158.95

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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.