Home / 217,979.32-326,987.75-60,207.79

Finding the Fourth Proportional to 217,979.32, 326,987.75 and 60,207.79

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Solution

The fourth proportional to 217,979.32, 326,987.75 and 60,207.79 is: 90,316.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,979.32 : 326,987.75 = 60,207.79 : x
  2. Step 2: Convert to fraction form
    217,979.32/326,987.75 = 60,207.79/x
  3. Step 3: Cross multiply
    217,979.32x = 326,987.75 × 60,207.79
  4. Step 4: Simplify right side
    217,979.32x = 19,687,209,784.57
  5. Step 5: Solve for x
    x = 19,687,209,784.57/217,979.32
  6. Step 6: Final answer
    x = 90,316.87

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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.