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Finding the Fourth Proportional to 398,608.52, 550,056.06 and 226,502.60

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Solution

The fourth proportional to 398,608.52, 550,056.06 and 226,502.60 is: 312,560.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,608.52 : 550,056.06 = 226,502.60 : x
  2. Step 2: Convert to fraction form
    398,608.52/550,056.06 = 226,502.60/x
  3. Step 3: Cross multiply
    398,608.52x = 550,056.06 × 226,502.60
  4. Step 4: Simplify right side
    398,608.52x = 124,589,129,110.90
  5. Step 5: Solve for x
    x = 124,589,129,110.90/398,608.52
  6. Step 6: Final answer
    x = 312,560.12

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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.