Home / 345,724.38-518,137.02-177,101.82

Finding the Fourth Proportional to 345,724.38, 518,137.02 and 177,101.82

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Solution

The fourth proportional to 345,724.38, 518,137.02 and 177,101.82 is: 265,422.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,724.38 : 518,137.02 = 177,101.82 : x
  2. Step 2: Convert to fraction form
    345,724.38/518,137.02 = 177,101.82/x
  3. Step 3: Cross multiply
    345,724.38x = 518,137.02 × 177,101.82
  4. Step 4: Simplify right side
    345,724.38x = 91,763,009,251.38
  5. Step 5: Solve for x
    x = 91,763,009,251.38/345,724.38
  6. Step 6: Final answer
    x = 265,422.44

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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.