Home / 217,713.80-326,373.86-77,439.62

Finding the Fourth Proportional to 217,713.80, 326,373.86 and 77,439.62

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Solution

The fourth proportional to 217,713.80, 326,373.86 and 77,439.62 is: 116,089.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,713.80 : 326,373.86 = 77,439.62 : x
  2. Step 2: Convert to fraction form
    217,713.80/326,373.86 = 77,439.62/x
  3. Step 3: Cross multiply
    217,713.80x = 326,373.86 × 77,439.62
  4. Step 4: Simplify right side
    217,713.80x = 25,274,267,696.33
  5. Step 5: Solve for x
    x = 25,274,267,696.33/217,713.80
  6. Step 6: Final answer
    x = 116,089.42

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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.