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Finding the Fourth Proportional to 248,060.94, 371,869.87 and 90,178.17

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Solution

The fourth proportional to 248,060.94, 371,869.87 and 90,178.17 is: 135,186.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,060.94 : 371,869.87 = 90,178.17 : x
  2. Step 2: Convert to fraction form
    248,060.94/371,869.87 = 90,178.17/x
  3. Step 3: Cross multiply
    248,060.94x = 371,869.87 × 90,178.17
  4. Step 4: Simplify right side
    248,060.94x = 33,534,542,269.94
  5. Step 5: Solve for x
    x = 33,534,542,269.94/248,060.94
  6. Step 6: Final answer
    x = 135,186.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.