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Finding the Fourth Proportional to 228,557.77, 315,414.15 and 136,771.44

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Solution

The fourth proportional to 228,557.77, 315,414.15 and 136,771.44 is: 188,747.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,557.77 : 315,414.15 = 136,771.44 : x
  2. Step 2: Convert to fraction form
    228,557.77/315,414.15 = 136,771.44/x
  3. Step 3: Cross multiply
    228,557.77x = 315,414.15 × 136,771.44
  4. Step 4: Simplify right side
    228,557.77x = 43,139,646,565.52
  5. Step 5: Solve for x
    x = 43,139,646,565.52/228,557.77
  6. Step 6: Final answer
    x = 188,747.23

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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.