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Finding the Fourth Proportional to 228,539, 315,383.82 and 127,939.16

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Solution

The fourth proportional to 228,539, 315,383.82 and 127,939.16 is: 176,556.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,539 : 315,383.82 = 127,939.16 : x
  2. Step 2: Convert to fraction form
    228,539/315,383.82 = 127,939.16/x
  3. Step 3: Cross multiply
    228,539x = 315,383.82 × 127,939.16
  4. Step 4: Simplify right side
    228,539x = 40,349,941,008.39
  5. Step 5: Solve for x
    x = 40,349,941,008.39/228,539
  6. Step 6: Final answer
    x = 176,556.04

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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.