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Finding the Fourth Proportional to 272,520.90, 408,927.15 and 114,765.30

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Solution

The fourth proportional to 272,520.90, 408,927.15 and 114,765.30 is: 172,209.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,520.90 : 408,927.15 = 114,765.30 : x
  2. Step 2: Convert to fraction form
    272,520.90/408,927.15 = 114,765.30/x
  3. Step 3: Cross multiply
    272,520.90x = 408,927.15 × 114,765.30
  4. Step 4: Simplify right side
    272,520.90x = 46,930,647,047.90
  5. Step 5: Solve for x
    x = 46,930,647,047.90/272,520.90
  6. Step 6: Final answer
    x = 172,209.35

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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.