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Finding the Fourth Proportional to 221,874.50, 332,811.75 and 74,130.50

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Solution

The fourth proportional to 221,874.50, 332,811.75 and 74,130.50 is: 111,195.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,874.50 : 332,811.75 = 74,130.50 : x
  2. Step 2: Convert to fraction form
    221,874.50/332,811.75 = 74,130.50/x
  3. Step 3: Cross multiply
    221,874.50x = 332,811.75 × 74,130.50
  4. Step 4: Simplify right side
    221,874.50x = 24,671,501,433.38
  5. Step 5: Solve for x
    x = 24,671,501,433.38/221,874.50
  6. Step 6: Final answer
    x = 111,195.75

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1.5x scale

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.