Home / 442,823.60-664,073.40-143,382.80

Finding the Fourth Proportional to 442,823.60, 664,073.40 and 143,382.80

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Solution

The fourth proportional to 442,823.60, 664,073.40 and 143,382.80 is: 215,021.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,823.60 : 664,073.40 = 143,382.80 : x
  2. Step 2: Convert to fraction form
    442,823.60/664,073.40 = 143,382.80/x
  3. Step 3: Cross multiply
    442,823.60x = 664,073.40 × 143,382.80
  4. Step 4: Simplify right side
    442,823.60x = 95,216,703,497.52
  5. Step 5: Solve for x
    x = 95,216,703,497.52/442,823.60
  6. Step 6: Final answer
    x = 215,021.75

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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.