Home / 279,092.81-385,136.45-158,242.26

Finding the Fourth Proportional to 279,092.81, 385,136.45 and 158,242.26

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Solution

The fourth proportional to 279,092.81, 385,136.45 and 158,242.26 is: 218,367.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,092.81 : 385,136.45 = 158,242.26 : x
  2. Step 2: Convert to fraction form
    279,092.81/385,136.45 = 158,242.26/x
  3. Step 3: Cross multiply
    279,092.81x = 385,136.45 × 158,242.26
  4. Step 4: Simplify right side
    279,092.81x = 60,944,863,502.84
  5. Step 5: Solve for x
    x = 60,944,863,502.84/279,092.81
  6. Step 6: Final answer
    x = 218,367.73

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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.