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Finding the Fourth Proportional to 225,554.16, 311,250.16 and 123,579.48

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Solution

The fourth proportional to 225,554.16, 311,250.16 and 123,579.48 is: 170,531.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,554.16 : 311,250.16 = 123,579.48 : x
  2. Step 2: Convert to fraction form
    225,554.16/311,250.16 = 123,579.48/x
  3. Step 3: Cross multiply
    225,554.16x = 311,250.16 × 123,579.48
  4. Step 4: Simplify right side
    225,554.16x = 38,464,132,922.72
  5. Step 5: Solve for x
    x = 38,464,132,922.72/225,554.16
  6. Step 6: Final answer
    x = 170,531.69

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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.