Home / 285,611.63-394,144.04-158,306.36

Finding the Fourth Proportional to 285,611.63, 394,144.04 and 158,306.36

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Solution

The fourth proportional to 285,611.63, 394,144.04 and 158,306.36 is: 218,462.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,611.63 : 394,144.04 = 158,306.36 : x
  2. Step 2: Convert to fraction form
    285,611.63/394,144.04 = 158,306.36/x
  3. Step 3: Cross multiply
    285,611.63x = 394,144.04 × 158,306.36
  4. Step 4: Simplify right side
    285,611.63x = 62,395,506,713.14
  5. Step 5: Solve for x
    x = 62,395,506,713.14/285,611.63
  6. Step 6: Final answer
    x = 218,462.77

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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.