Home / 217,016.52-299,508.36-121,504.76

Finding the Fourth Proportional to 217,016.52, 299,508.36 and 121,504.76

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Solution

The fourth proportional to 217,016.52, 299,508.36 and 121,504.76 is: 167,690.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,016.52 : 299,508.36 = 121,504.76 : x
  2. Step 2: Convert to fraction form
    217,016.52/299,508.36 = 121,504.76/x
  3. Step 3: Cross multiply
    217,016.52x = 299,508.36 × 121,504.76
  4. Step 4: Simplify right side
    217,016.52x = 36,391,691,399.79
  5. Step 5: Solve for x
    x = 36,391,691,399.79/217,016.52
  6. Step 6: Final answer
    x = 167,690.88

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1.5x scale

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.