Home / 259,972.26-389,957.36-82,493.11

Finding the Fourth Proportional to 259,972.26, 389,957.36 and 82,493.11

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Solution

The fourth proportional to 259,972.26, 389,957.36 and 82,493.11 is: 123,739.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,972.26 : 389,957.36 = 82,493.11 : x
  2. Step 2: Convert to fraction form
    259,972.26/389,957.36 = 82,493.11/x
  3. Step 3: Cross multiply
    259,972.26x = 389,957.36 × 82,493.11
  4. Step 4: Simplify right side
    259,972.26x = 32,168,795,068.05
  5. Step 5: Solve for x
    x = 32,168,795,068.05/259,972.26
  6. Step 6: Final answer
    x = 123,739.34

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Similar ratio
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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.