Home / 226,005.76-311,945.28-154,414.72

Finding the Fourth Proportional to 226,005.76, 311,945.28 and 154,414.72

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Solution

The fourth proportional to 226,005.76, 311,945.28 and 154,414.72 is: 213,131.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,005.76 : 311,945.28 = 154,414.72 : x
  2. Step 2: Convert to fraction form
    226,005.76/311,945.28 = 154,414.72/x
  3. Step 3: Cross multiply
    226,005.76x = 311,945.28 × 154,414.72
  4. Step 4: Simplify right side
    226,005.76x = 48,168,943,066.52
  5. Step 5: Solve for x
    x = 48,168,943,066.52/226,005.76
  6. Step 6: Final answer
    x = 213,131.48

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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.