Home / 221,445.60-332,168.40-109,147.20

Finding the Fourth Proportional to 221,445.60, 332,168.40 and 109,147.20

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Solution

The fourth proportional to 221,445.60, 332,168.40 and 109,147.20 is: 163,720.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,445.60 : 332,168.40 = 109,147.20 : x
  2. Step 2: Convert to fraction form
    221,445.60/332,168.40 = 109,147.20/x
  3. Step 3: Cross multiply
    221,445.60x = 332,168.40 × 109,147.20
  4. Step 4: Simplify right side
    221,445.60x = 36,255,250,788.48
  5. Step 5: Solve for x
    x = 36,255,250,788.48/221,445.60
  6. Step 6: Final answer
    x = 163,720.80

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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.