Home / 442,945.50-664,515.15-143,456.36

Finding the Fourth Proportional to 442,945.50, 664,515.15 and 143,456.36

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Solution

The fourth proportional to 442,945.50, 664,515.15 and 143,456.36 is: 215,215.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,945.50 : 664,515.15 = 143,456.36 : x
  2. Step 2: Convert to fraction form
    442,945.50/664,515.15 = 143,456.36/x
  3. Step 3: Cross multiply
    442,945.50x = 664,515.15 × 143,456.36
  4. Step 4: Simplify right side
    442,945.50x = 95,328,922,199.24
  5. Step 5: Solve for x
    x = 95,328,922,199.24/442,945.50
  6. Step 6: Final answer
    x = 215,215.92

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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.