Home / 515,178.20-772,759.20-141,201.20

Finding the Fourth Proportional to 515,178.20, 772,759.20 and 141,201.20

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Solution

The fourth proportional to 515,178.20, 772,759.20 and 141,201.20 is: 211,799.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,178.20 : 772,759.20 = 141,201.20 : x
  2. Step 2: Convert to fraction form
    515,178.20/772,759.20 = 141,201.20/x
  3. Step 3: Cross multiply
    515,178.20x = 772,759.20 × 141,201.20
  4. Step 4: Simplify right side
    515,178.20x = 109,114,526,351.04
  5. Step 5: Solve for x
    x = 109,114,526,351.04/515,178.20
  6. Step 6: Final answer
    x = 211,799.58

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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.