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Finding the Fourth Proportional to 225,553.12, 311,249.84 and 124,943.84

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Solution

The fourth proportional to 225,553.12, 311,249.84 and 124,943.84 is: 172,415.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,553.12 : 311,249.84 = 124,943.84 : x
  2. Step 2: Convert to fraction form
    225,553.12/311,249.84 = 124,943.84/x
  3. Step 3: Cross multiply
    225,553.12x = 311,249.84 × 124,943.84
  4. Step 4: Simplify right side
    225,553.12x = 38,888,750,208.99
  5. Step 5: Solve for x
    x = 38,888,750,208.99/225,553.12
  6. Step 6: Final answer
    x = 172,415.04

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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.