Home / 345,020.20-517,530.30-251,708.20

Finding the Fourth Proportional to 345,020.20, 517,530.30 and 251,708.20

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Solution

The fourth proportional to 345,020.20, 517,530.30 and 251,708.20 is: 377,562.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,020.20 : 517,530.30 = 251,708.20 : x
  2. Step 2: Convert to fraction form
    345,020.20/517,530.30 = 251,708.20/x
  3. Step 3: Cross multiply
    345,020.20x = 517,530.30 × 251,708.20
  4. Step 4: Simplify right side
    345,020.20x = 130,266,620,258.46
  5. Step 5: Solve for x
    x = 130,266,620,258.46/345,020.20
  6. Step 6: Final answer
    x = 377,562.30

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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.