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Finding the Fourth Proportional to 277,272.55, 415,908.72 and 108,872.11

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Solution

The fourth proportional to 277,272.55, 415,908.72 and 108,872.11 is: 163,308.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,272.55 : 415,908.72 = 108,872.11 : x
  2. Step 2: Convert to fraction form
    277,272.55/415,908.72 = 108,872.11/x
  3. Step 3: Cross multiply
    277,272.55x = 415,908.72 × 108,872.11
  4. Step 4: Simplify right side
    277,272.55x = 45,280,859,913.80
  5. Step 5: Solve for x
    x = 45,280,859,913.80/277,272.55
  6. Step 6: Final answer
    x = 163,308.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.