Home / 408,260.72-611,080.84-218,246.04

Finding the Fourth Proportional to 408,260.72, 611,080.84 and 218,246.04

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Solution

The fourth proportional to 408,260.72, 611,080.84 and 218,246.04 is: 326,668.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,260.72 : 611,080.84 = 218,246.04 : x
  2. Step 2: Convert to fraction form
    408,260.72/611,080.84 = 218,246.04/x
  3. Step 3: Cross multiply
    408,260.72x = 611,080.84 × 218,246.04
  4. Step 4: Simplify right side
    408,260.72x = 133,365,973,449.87
  5. Step 5: Solve for x
    x = 133,365,973,449.87/408,260.72
  6. Step 6: Final answer
    x = 326,668.64

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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.