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Finding the Fourth Proportional to 216,930.24, 325,444.80 and 83,810.88

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Solution

The fourth proportional to 216,930.24, 325,444.80 and 83,810.88 is: 125,735.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,930.24 : 325,444.80 = 83,810.88 : x
  2. Step 2: Convert to fraction form
    216,930.24/325,444.80 = 83,810.88/x
  3. Step 3: Cross multiply
    216,930.24x = 325,444.80 × 83,810.88
  4. Step 4: Simplify right side
    216,930.24x = 27,275,815,079.42
  5. Step 5: Solve for x
    x = 27,275,815,079.42/216,930.24
  6. Step 6: Final answer
    x = 125,735.42

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1.5x scale

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.