Home / 443,340.20-664,556.70-218,354.60

Finding the Fourth Proportional to 443,340.20, 664,556.70 and 218,354.60

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Solution

The fourth proportional to 443,340.20, 664,556.70 and 218,354.60 is: 327,308.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,340.20 : 664,556.70 = 218,354.60 : x
  2. Step 2: Convert to fraction form
    443,340.20/664,556.70 = 218,354.60/x
  3. Step 3: Cross multiply
    443,340.20x = 664,556.70 × 218,354.60
  4. Step 4: Simplify right side
    443,340.20x = 145,109,012,405.82
  5. Step 5: Solve for x
    x = 145,109,012,405.82/443,340.20
  6. Step 6: Final answer
    x = 327,308.49

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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.