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Finding the Fourth Proportional to 225,978.87, 311,849.98 and 124,006.03

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Solution

The fourth proportional to 225,978.87, 311,849.98 and 124,006.03 is: 171,127.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,978.87 : 311,849.98 = 124,006.03 : x
  2. Step 2: Convert to fraction form
    225,978.87/311,849.98 = 124,006.03/x
  3. Step 3: Cross multiply
    225,978.87x = 311,849.98 × 124,006.03
  4. Step 4: Simplify right side
    225,978.87x = 38,671,277,975.38
  5. Step 5: Solve for x
    x = 38,671,277,975.38/225,978.87
  6. Step 6: Final answer
    x = 171,127.85

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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.