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Finding the Fourth Proportional to 225,485, 311,179.02 and 124,883

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Solution

The fourth proportional to 225,485, 311,179.02 and 124,883 is: 172,343.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,485 : 311,179.02 = 124,883 : x
  2. Step 2: Convert to fraction form
    225,485/311,179.02 = 124,883/x
  3. Step 3: Cross multiply
    225,485x = 311,179.02 × 124,883
  4. Step 4: Simplify right side
    225,485x = 38,860,969,554.66
  5. Step 5: Solve for x
    x = 38,860,969,554.66/225,485
  6. Step 6: Final answer
    x = 172,343.92

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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.