Home / 442,600.20-664,064.33-143,090.55

Finding the Fourth Proportional to 442,600.20, 664,064.33 and 143,090.55

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Solution

The fourth proportional to 442,600.20, 664,064.33 and 143,090.55 is: 214,688.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,600.20 : 664,064.33 = 143,090.55 : x
  2. Step 2: Convert to fraction form
    442,600.20/664,064.33 = 143,090.55/x
  3. Step 3: Cross multiply
    442,600.20x = 664,064.33 × 143,090.55
  4. Step 4: Simplify right side
    442,600.20x = 95,021,329,499.63
  5. Step 5: Solve for x
    x = 95,021,329,499.63/442,600.20
  6. Step 6: Final answer
    x = 214,688.85

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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.