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Finding the Fourth Proportional to 273,073.60, 409,610.40 and 76,081.60

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Solution

The fourth proportional to 273,073.60, 409,610.40 and 76,081.60 is: 114,122.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,073.60 : 409,610.40 = 76,081.60 : x
  2. Step 2: Convert to fraction form
    273,073.60/409,610.40 = 76,081.60/x
  3. Step 3: Cross multiply
    273,073.60x = 409,610.40 × 76,081.60
  4. Step 4: Simplify right side
    273,073.60x = 31,163,814,608.64
  5. Step 5: Solve for x
    x = 31,163,814,608.64/273,073.60
  6. Step 6: Final answer
    x = 114,122.40

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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.