Home / 285,142.26-393,566.41-170,488.79

Finding the Fourth Proportional to 285,142.26, 393,566.41 and 170,488.79

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Solution

The fourth proportional to 285,142.26, 393,566.41 and 170,488.79 is: 235,316.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,142.26 : 393,566.41 = 170,488.79 : x
  2. Step 2: Convert to fraction form
    285,142.26/393,566.41 = 170,488.79/x
  3. Step 3: Cross multiply
    285,142.26x = 393,566.41 × 170,488.79
  4. Step 4: Simplify right side
    285,142.26x = 67,098,661,025.54
  5. Step 5: Solve for x
    x = 67,098,661,025.54/285,142.26
  6. Step 6: Final answer
    x = 235,316.44

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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.