Home / 285,306.39-393,722.82-157,982.04

Finding the Fourth Proportional to 285,306.39, 393,722.82 and 157,982.04

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Solution

The fourth proportional to 285,306.39, 393,722.82 and 157,982.04 is: 218,015.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,306.39 : 393,722.82 = 157,982.04 : x
  2. Step 2: Convert to fraction form
    285,306.39/393,722.82 = 157,982.04/x
  3. Step 3: Cross multiply
    285,306.39x = 393,722.82 × 157,982.04
  4. Step 4: Simplify right side
    285,306.39x = 62,201,134,298.15
  5. Step 5: Solve for x
    x = 62,201,134,298.15/285,306.39
  6. Step 6: Final answer
    x = 218,015.22

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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.