Home / 217,834.80-326,817.84-77,575.20

Finding the Fourth Proportional to 217,834.80, 326,817.84 and 77,575.20

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Solution

The fourth proportional to 217,834.80, 326,817.84 and 77,575.20 is: 116,386.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,834.80 : 326,817.84 = 77,575.20 : x
  2. Step 2: Convert to fraction form
    217,834.80/326,817.84 = 77,575.20/x
  3. Step 3: Cross multiply
    217,834.80x = 326,817.84 × 77,575.20
  4. Step 4: Simplify right side
    217,834.80x = 25,352,959,301.57
  5. Step 5: Solve for x
    x = 25,352,959,301.57/217,834.80
  6. Step 6: Final answer
    x = 116,386.18

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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.