Home / 285,949.04-394,595.16-158,621.90

Finding the Fourth Proportional to 285,949.04, 394,595.16 and 158,621.90

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Solution

The fourth proportional to 285,949.04, 394,595.16 and 158,621.90 is: 218,890.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,949.04 : 394,595.16 = 158,621.90 : x
  2. Step 2: Convert to fraction form
    285,949.04/394,595.16 = 158,621.90/x
  3. Step 3: Cross multiply
    285,949.04x = 394,595.16 × 158,621.90
  4. Step 4: Simplify right side
    285,949.04x = 62,591,434,010.00
  5. Step 5: Solve for x
    x = 62,591,434,010.00/285,949.04
  6. Step 6: Final answer
    x = 218,890.17

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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.