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Finding the Fourth Proportional to 221,480.70, 332,002.35 and 109,068.90

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Solution

The fourth proportional to 221,480.70, 332,002.35 and 109,068.90 is: 163,495.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,480.70 : 332,002.35 = 109,068.90 : x
  2. Step 2: Convert to fraction form
    221,480.70/332,002.35 = 109,068.90/x
  3. Step 3: Cross multiply
    221,480.70x = 332,002.35 × 109,068.90
  4. Step 4: Simplify right side
    221,480.70x = 36,211,131,111.92
  5. Step 5: Solve for x
    x = 36,211,131,111.92/221,480.70
  6. Step 6: Final answer
    x = 163,495.65

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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.