Home / 345,040.80-517,577.40-108,391.20

Finding the Fourth Proportional to 345,040.80, 517,577.40 and 108,391.20

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Solution

The fourth proportional to 345,040.80, 517,577.40 and 108,391.20 is: 162,591.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,040.80 : 517,577.40 = 108,391.20 : x
  2. Step 2: Convert to fraction form
    345,040.80/517,577.40 = 108,391.20/x
  3. Step 3: Cross multiply
    345,040.80x = 517,577.40 × 108,391.20
  4. Step 4: Simplify right side
    345,040.80x = 56,100,835,478.88
  5. Step 5: Solve for x
    x = 56,100,835,478.88/345,040.80
  6. Step 6: Final answer
    x = 162,591.89

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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.