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Finding the Fourth Proportional to 387,670.58, 534,906.95 and 226,494.48

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Solution

The fourth proportional to 387,670.58, 534,906.95 and 226,494.48 is: 312,516.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,670.58 : 534,906.95 = 226,494.48 : x
  2. Step 2: Convert to fraction form
    387,670.58/534,906.95 = 226,494.48/x
  3. Step 3: Cross multiply
    387,670.58x = 534,906.95 × 226,494.48
  4. Step 4: Simplify right side
    387,670.58x = 121,153,471,488.64
  5. Step 5: Solve for x
    x = 121,153,471,488.64/387,670.58
  6. Step 6: Final answer
    x = 312,516.55

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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.