Home / 285,142.22-393,469.59-170,398.09

Finding the Fourth Proportional to 285,142.22, 393,469.59 and 170,398.09

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Solution

The fourth proportional to 285,142.22, 393,469.59 and 170,398.09 is: 235,133.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,142.22 : 393,469.59 = 170,398.09 : x
  2. Step 2: Convert to fraction form
    285,142.22/393,469.59 = 170,398.09/x
  3. Step 3: Cross multiply
    285,142.22x = 393,469.59 × 170,398.09
  4. Step 4: Simplify right side
    285,142.22x = 67,046,466,264.40
  5. Step 5: Solve for x
    x = 67,046,466,264.40/285,142.22
  6. Step 6: Final answer
    x = 235,133.43

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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.