Home / 411,824.33-618,135.98-198,742.20

Finding the Fourth Proportional to 411,824.33, 618,135.98 and 198,742.20

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Solution

The fourth proportional to 411,824.33, 618,135.98 and 198,742.20 is: 298,306.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    411,824.33 : 618,135.98 = 198,742.20 : x
  2. Step 2: Convert to fraction form
    411,824.33/618,135.98 = 198,742.20/x
  3. Step 3: Cross multiply
    411,824.33x = 618,135.98 × 198,742.20
  4. Step 4: Simplify right side
    411,824.33x = 122,849,703,570.65
  5. Step 5: Solve for x
    x = 122,849,703,570.65/411,824.33
  6. Step 6: Final answer
    x = 298,306.09

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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.