Home / 285,927.12-394,592.31-158,602.68

Finding the Fourth Proportional to 285,927.12, 394,592.31 and 158,602.68

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Solution

The fourth proportional to 285,927.12, 394,592.31 and 158,602.68 is: 218,878.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,927.12 : 394,592.31 = 158,602.68 : x
  2. Step 2: Convert to fraction form
    285,927.12/394,592.31 = 158,602.68/x
  3. Step 3: Cross multiply
    285,927.12x = 394,592.31 × 158,602.68
  4. Step 4: Simplify right side
    285,927.12x = 62,583,397,873.39
  5. Step 5: Solve for x
    x = 62,583,397,873.39/285,927.12
  6. Step 6: Final answer
    x = 218,878.85

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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.