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Finding the Fourth Proportional to 226,820.20, 340,230.30 and 77,229.40

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Solution

The fourth proportional to 226,820.20, 340,230.30 and 77,229.40 is: 115,844.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,820.20 : 340,230.30 = 77,229.40 : x
  2. Step 2: Convert to fraction form
    226,820.20/340,230.30 = 77,229.40/x
  3. Step 3: Cross multiply
    226,820.20x = 340,230.30 × 77,229.40
  4. Step 4: Simplify right side
    226,820.20x = 26,275,781,930.82
  5. Step 5: Solve for x
    x = 26,275,781,930.82/226,820.20
  6. Step 6: Final answer
    x = 115,844.10

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1.5x scale

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.