Home / 443,107.20-664,207.20-218,121.60

Finding the Fourth Proportional to 443,107.20, 664,207.20 and 218,121.60

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Solution

The fourth proportional to 443,107.20, 664,207.20 and 218,121.60 is: 326,959.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,107.20 : 664,207.20 = 218,121.60 : x
  2. Step 2: Convert to fraction form
    443,107.20/664,207.20 = 218,121.60/x
  3. Step 3: Cross multiply
    443,107.20x = 664,207.20 × 218,121.60
  4. Step 4: Simplify right side
    443,107.20x = 144,877,937,195.52
  5. Step 5: Solve for x
    x = 144,877,937,195.52/443,107.20
  6. Step 6: Final answer
    x = 326,959.11

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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.