Home / 443,428.52-664,970.22-143,836.65

Finding the Fourth Proportional to 443,428.52, 664,970.22 and 143,836.65

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Solution

The fourth proportional to 443,428.52, 664,970.22 and 143,836.65 is: 215,699.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,428.52 : 664,970.22 = 143,836.65 : x
  2. Step 2: Convert to fraction form
    443,428.52/664,970.22 = 143,836.65/x
  3. Step 3: Cross multiply
    443,428.52x = 664,970.22 × 143,836.65
  4. Step 4: Simplify right side
    443,428.52x = 95,647,088,794.56
  5. Step 5: Solve for x
    x = 95,647,088,794.56/443,428.52
  6. Step 6: Final answer
    x = 215,699.00

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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.