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Finding the Fourth Proportional to 279,076.27, 385,078.57 and 164,377.76

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Solution

The fourth proportional to 279,076.27, 385,078.57 and 164,377.76 is: 226,813.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,076.27 : 385,078.57 = 164,377.76 : x
  2. Step 2: Convert to fraction form
    279,076.27/385,078.57 = 164,377.76/x
  3. Step 3: Cross multiply
    279,076.27x = 385,078.57 × 164,377.76
  4. Step 4: Simplify right side
    279,076.27x = 63,298,350,424.27
  5. Step 5: Solve for x
    x = 63,298,350,424.27/279,076.27
  6. Step 6: Final answer
    x = 226,813.81

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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.