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Finding the Fourth Proportional to 275,647.60, 380,498.88 and 268,063.52

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Solution

The fourth proportional to 275,647.60, 380,498.88 and 268,063.52 is: 370,029.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,647.60 : 380,498.88 = 268,063.52 : x
  2. Step 2: Convert to fraction form
    275,647.60/380,498.88 = 268,063.52/x
  3. Step 3: Cross multiply
    275,647.60x = 380,498.88 × 268,063.52
  4. Step 4: Simplify right side
    275,647.60x = 101,997,869,128.86
  5. Step 5: Solve for x
    x = 101,997,869,128.86/275,647.60
  6. Step 6: Final answer
    x = 370,029.96

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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.