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Finding the Fourth Proportional to 322,845.60, 484,268.40 and 265,764.90

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Solution

The fourth proportional to 322,845.60, 484,268.40 and 265,764.90 is: 398,647.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,845.60 : 484,268.40 = 265,764.90 : x
  2. Step 2: Convert to fraction form
    322,845.60/484,268.40 = 265,764.90/x
  3. Step 3: Cross multiply
    322,845.60x = 484,268.40 × 265,764.90
  4. Step 4: Simplify right side
    322,845.60x = 128,701,542,899.16
  5. Step 5: Solve for x
    x = 128,701,542,899.16/322,845.60
  6. Step 6: Final answer
    x = 398,647.35

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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.