Home / 217,555.39-326,333.17-67,807.75

Finding the Fourth Proportional to 217,555.39, 326,333.17 and 67,807.75

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Solution

The fourth proportional to 217,555.39, 326,333.17 and 67,807.75 is: 101,711.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,555.39 : 326,333.17 = 67,807.75 : x
  2. Step 2: Convert to fraction form
    217,555.39/326,333.17 = 67,807.75/x
  3. Step 3: Cross multiply
    217,555.39x = 326,333.17 × 67,807.75
  4. Step 4: Simplify right side
    217,555.39x = 22,127,917,888.87
  5. Step 5: Solve for x
    x = 22,127,917,888.87/217,555.39
  6. Step 6: Final answer
    x = 101,711.65

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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.