Home / 204,948.20-307,422.30-120,621.80

Finding the Fourth Proportional to 204,948.20, 307,422.30 and 120,621.80

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Solution

The fourth proportional to 204,948.20, 307,422.30 and 120,621.80 is: 180,932.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,948.20 : 307,422.30 = 120,621.80 : x
  2. Step 2: Convert to fraction form
    204,948.20/307,422.30 = 120,621.80/x
  3. Step 3: Cross multiply
    204,948.20x = 307,422.30 × 120,621.80
  4. Step 4: Simplify right side
    204,948.20x = 37,081,831,186.14
  5. Step 5: Solve for x
    x = 37,081,831,186.14/204,948.20
  6. Step 6: Final answer
    x = 180,932.70

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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.