Home / 443,006.20-664,055.70-218,020.60

Finding the Fourth Proportional to 443,006.20, 664,055.70 and 218,020.60

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Solution

The fourth proportional to 443,006.20, 664,055.70 and 218,020.60 is: 326,807.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,006.20 : 664,055.70 = 218,020.60 : x
  2. Step 2: Convert to fraction form
    443,006.20/664,055.70 = 218,020.60/x
  3. Step 3: Cross multiply
    443,006.20x = 664,055.70 × 218,020.60
  4. Step 4: Simplify right side
    443,006.20x = 144,777,822,147.42
  5. Step 5: Solve for x
    x = 144,777,822,147.42/443,006.20
  6. Step 6: Final answer
    x = 326,807.67

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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.