Home / 443,342.22-665,106.78-143,799.49

Finding the Fourth Proportional to 443,342.22, 665,106.78 and 143,799.49

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Solution

The fourth proportional to 443,342.22, 665,106.78 and 143,799.49 is: 215,729.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,342.22 : 665,106.78 = 143,799.49 : x
  2. Step 2: Convert to fraction form
    443,342.22/665,106.78 = 143,799.49/x
  3. Step 3: Cross multiply
    443,342.22x = 665,106.78 × 143,799.49
  4. Step 4: Simplify right side
    443,342.22x = 95,642,015,759.54
  5. Step 5: Solve for x
    x = 95,642,015,759.54/443,342.22
  6. Step 6: Final answer
    x = 215,729.55

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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.