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Finding the Fourth Proportional to 277,250.60, 415,872.06 and 66,886.76

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Solution

The fourth proportional to 277,250.60, 415,872.06 and 66,886.76 is: 100,329.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,250.60 : 415,872.06 = 66,886.76 : x
  2. Step 2: Convert to fraction form
    277,250.60/415,872.06 = 66,886.76/x
  3. Step 3: Cross multiply
    277,250.60x = 415,872.06 × 66,886.76
  4. Step 4: Simplify right side
    277,250.60x = 27,816,334,667.93
  5. Step 5: Solve for x
    x = 27,816,334,667.93/277,250.60
  6. Step 6: Final answer
    x = 100,329.21

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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.