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Finding the Fourth Proportional to 276,673.60, 415,010.40 and 274,340.80

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Solution

The fourth proportional to 276,673.60, 415,010.40 and 274,340.80 is: 411,511.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,673.60 : 415,010.40 = 274,340.80 : x
  2. Step 2: Convert to fraction form
    276,673.60/415,010.40 = 274,340.80/x
  3. Step 3: Cross multiply
    276,673.60x = 415,010.40 × 274,340.80
  4. Step 4: Simplify right side
    276,673.60x = 113,854,285,144.32
  5. Step 5: Solve for x
    x = 113,854,285,144.32/276,673.60
  6. Step 6: Final answer
    x = 411,511.20

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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.