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Finding the Fourth Proportional to 225,452.25, 311,133.89 and 124,850.25

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Solution

The fourth proportional to 225,452.25, 311,133.89 and 124,850.25 is: 172,298.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,452.25 : 311,133.89 = 124,850.25 : x
  2. Step 2: Convert to fraction form
    225,452.25/311,133.89 = 124,850.25/x
  3. Step 3: Cross multiply
    225,452.25x = 311,133.89 × 124,850.25
  4. Step 4: Simplify right side
    225,452.25x = 38,845,143,325.72
  5. Step 5: Solve for x
    x = 38,845,143,325.72/225,452.25
  6. Step 6: Final answer
    x = 172,298.76

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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.