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Finding the Fourth Proportional to 387,670.33, 534,906.61 and 226,494.23

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Solution

The fourth proportional to 387,670.33, 534,906.61 and 226,494.23 is: 312,516.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,670.33 : 534,906.61 = 226,494.23 : x
  2. Step 2: Convert to fraction form
    387,670.33/534,906.61 = 226,494.23/x
  3. Step 3: Cross multiply
    387,670.33x = 534,906.61 × 226,494.23
  4. Step 4: Simplify right side
    387,670.33x = 121,153,261,524.89
  5. Step 5: Solve for x
    x = 121,153,261,524.89/387,670.33
  6. Step 6: Final answer
    x = 312,516.21

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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.