Home / 285,167.33-393,504-170,423.15

Finding the Fourth Proportional to 285,167.33, 393,504 and 170,423.15

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Solution

The fourth proportional to 285,167.33, 393,504 and 170,423.15 is: 235,167.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,167.33 : 393,504 = 170,423.15 : x
  2. Step 2: Convert to fraction form
    285,167.33/393,504 = 170,423.15/x
  3. Step 3: Cross multiply
    285,167.33x = 393,504 × 170,423.15
  4. Step 4: Simplify right side
    285,167.33x = 67,062,191,217.60
  5. Step 5: Solve for x
    x = 67,062,191,217.60/285,167.33
  6. Step 6: Final answer
    x = 235,167.86

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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.