Home / 219,915.20-329,613.60-164,446.40

Finding the Fourth Proportional to 219,915.20, 329,613.60 and 164,446.40

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Solution

The fourth proportional to 219,915.20, 329,613.60 and 164,446.40 is: 246,475.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,915.20 : 329,613.60 = 164,446.40 : x
  2. Step 2: Convert to fraction form
    219,915.20/329,613.60 = 164,446.40/x
  3. Step 3: Cross multiply
    219,915.20x = 329,613.60 × 164,446.40
  4. Step 4: Simplify right side
    219,915.20x = 54,203,769,911.04
  5. Step 5: Solve for x
    x = 54,203,769,911.04/219,915.20
  6. Step 6: Final answer
    x = 246,475.78

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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.