Home / 285,310.04-393,723.05-157,982.90

Finding the Fourth Proportional to 285,310.04, 393,723.05 and 157,982.90

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Solution

The fourth proportional to 285,310.04, 393,723.05 and 157,982.90 is: 218,013.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,310.04 : 393,723.05 = 157,982.90 : x
  2. Step 2: Convert to fraction form
    285,310.04/393,723.05 = 157,982.90/x
  3. Step 3: Cross multiply
    285,310.04x = 393,723.05 × 157,982.90
  4. Step 4: Simplify right side
    285,310.04x = 62,201,508,445.93
  5. Step 5: Solve for x
    x = 62,201,508,445.93/285,310.04
  6. Step 6: Final answer
    x = 218,013.74

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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.