Home / 279,092.73-385,136.35-158,242.20

Finding the Fourth Proportional to 279,092.73, 385,136.35 and 158,242.20

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Solution

The fourth proportional to 279,092.73, 385,136.35 and 158,242.20 is: 218,367.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,092.73 : 385,136.35 = 158,242.20 : x
  2. Step 2: Convert to fraction form
    279,092.73/385,136.35 = 158,242.20/x
  3. Step 3: Cross multiply
    279,092.73x = 385,136.35 × 158,242.20
  4. Step 4: Simplify right side
    279,092.73x = 60,944,821,484.10
  5. Step 5: Solve for x
    x = 60,944,821,484.10/279,092.73
  6. Step 6: Final answer
    x = 218,367.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.