Home / 442,220.14-663,329.80-138,616.48

Finding the Fourth Proportional to 442,220.14, 663,329.80 and 138,616.48

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Solution

The fourth proportional to 442,220.14, 663,329.80 and 138,616.48 is: 207,924.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,220.14 : 663,329.80 = 138,616.48 : x
  2. Step 2: Convert to fraction form
    442,220.14/663,329.80 = 138,616.48/x
  3. Step 3: Cross multiply
    442,220.14x = 663,329.80 × 138,616.48
  4. Step 4: Simplify right side
    442,220.14x = 91,948,438,836.45
  5. Step 5: Solve for x
    x = 91,948,438,836.45/442,220.14
  6. Step 6: Final answer
    x = 207,924.59

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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.