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Finding the Fourth Proportional to 398,608.27, 550,055.71 and 226,502.35

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Solution

The fourth proportional to 398,608.27, 550,055.71 and 226,502.35 is: 312,559.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,608.27 : 550,055.71 = 226,502.35 : x
  2. Step 2: Convert to fraction form
    398,608.27/550,055.71 = 226,502.35/x
  3. Step 3: Cross multiply
    398,608.27x = 550,055.71 × 226,502.35
  4. Step 4: Simplify right side
    398,608.27x = 124,588,913,069.33
  5. Step 5: Solve for x
    x = 124,588,913,069.33/398,608.27
  6. Step 6: Final answer
    x = 312,559.78

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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.