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Finding the Fourth Proportional to 226,694.40, 312,830.40 and 124,719.36

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Solution

The fourth proportional to 226,694.40, 312,830.40 and 124,719.36 is: 172,108.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,694.40 : 312,830.40 = 124,719.36 : x
  2. Step 2: Convert to fraction form
    226,694.40/312,830.40 = 124,719.36/x
  3. Step 3: Cross multiply
    226,694.40x = 312,830.40 × 124,719.36
  4. Step 4: Simplify right side
    226,694.40x = 39,016,007,276.54
  5. Step 5: Solve for x
    x = 39,016,007,276.54/226,694.40
  6. Step 6: Final answer
    x = 172,108.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.