Home / 272,555.40-408,851.33-92,638.20

Finding the Fourth Proportional to 272,555.40, 408,851.33 and 92,638.20

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Solution

The fourth proportional to 272,555.40, 408,851.33 and 92,638.20 is: 138,963.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,555.40 : 408,851.33 = 92,638.20 : x
  2. Step 2: Convert to fraction form
    272,555.40/408,851.33 = 92,638.20/x
  3. Step 3: Cross multiply
    272,555.40x = 408,851.33 × 92,638.20
  4. Step 4: Simplify right side
    272,555.40x = 37,875,250,815.62
  5. Step 5: Solve for x
    x = 37,875,250,815.62/272,555.40
  6. Step 6: Final answer
    x = 138,963.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.