Home / 285,948.04-394,593.78-158,620.90

Finding the Fourth Proportional to 285,948.04, 394,593.78 and 158,620.90

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Solution

The fourth proportional to 285,948.04, 394,593.78 and 158,620.90 is: 218,888.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,948.04 : 394,593.78 = 158,620.90 : x
  2. Step 2: Convert to fraction form
    285,948.04/394,593.78 = 158,620.90/x
  3. Step 3: Cross multiply
    285,948.04x = 394,593.78 × 158,620.90
  4. Step 4: Simplify right side
    285,948.04x = 62,590,820,518.00
  5. Step 5: Solve for x
    x = 62,590,820,518.00/285,948.04
  6. Step 6: Final answer
    x = 218,888.79

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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.