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Finding the Fourth Proportional to 179,938, 269,722.68 and 74,818

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Solution

The fourth proportional to 179,938, 269,722.68 and 74,818 is: 112,150.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,938 : 269,722.68 = 74,818 : x
  2. Step 2: Convert to fraction form
    179,938/269,722.68 = 74,818/x
  3. Step 3: Cross multiply
    179,938x = 269,722.68 × 74,818
  4. Step 4: Simplify right side
    179,938x = 20,180,111,472.24
  5. Step 5: Solve for x
    x = 20,180,111,472.24/179,938
  6. Step 6: Final answer
    x = 112,150.36

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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.