Home / 344,770.80-517,172.40-108,121.20

Finding the Fourth Proportional to 344,770.80, 517,172.40 and 108,121.20

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Solution

The fourth proportional to 344,770.80, 517,172.40 and 108,121.20 is: 162,186.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,770.80 : 517,172.40 = 108,121.20 : x
  2. Step 2: Convert to fraction form
    344,770.80/517,172.40 = 108,121.20/x
  3. Step 3: Cross multiply
    344,770.80x = 517,172.40 × 108,121.20
  4. Step 4: Simplify right side
    344,770.80x = 55,917,300,494.88
  5. Step 5: Solve for x
    x = 55,917,300,494.88/344,770.80
  6. Step 6: Final answer
    x = 162,186.88

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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.