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Finding the Fourth Proportional to 324,217.60, 486,211.20 and 146,809.60

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Solution

The fourth proportional to 324,217.60, 486,211.20 and 146,809.60 is: 220,162.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,217.60 : 486,211.20 = 146,809.60 : x
  2. Step 2: Convert to fraction form
    324,217.60/486,211.20 = 146,809.60/x
  3. Step 3: Cross multiply
    324,217.60x = 486,211.20 × 146,809.60
  4. Step 4: Simplify right side
    324,217.60x = 71,380,471,787.52
  5. Step 5: Solve for x
    x = 71,380,471,787.52/324,217.60
  6. Step 6: Final answer
    x = 220,162.24

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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.