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Finding the Fourth Proportional to 221,868, 332,802 and 74,124

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Solution

The fourth proportional to 221,868, 332,802 and 74,124 is: 111,186

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,868 : 332,802 = 74,124 : x
  2. Step 2: Convert to fraction form
    221,868/332,802 = 74,124/x
  3. Step 3: Cross multiply
    221,868x = 332,802 × 74,124
  4. Step 4: Simplify right side
    221,868x = 24,668,615,448
  5. Step 5: Solve for x
    x = 24,668,615,448/221,868
  6. Step 6: Final answer
    x = 111,186

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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.