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Finding the Fourth Proportional to 277,249.60, 415,870.56 and 66,885.76

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Solution

The fourth proportional to 277,249.60, 415,870.56 and 66,885.76 is: 100,327.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    277,249.60 : 415,870.56 = 66,885.76 : x
  2. Step 2: Convert to fraction form
    277,249.60/415,870.56 = 66,885.76/x
  3. Step 3: Cross multiply
    277,249.60x = 415,870.56 × 66,885.76
  4. Step 4: Simplify right side
    277,249.60x = 27,815,818,467.23
  5. Step 5: Solve for x
    x = 27,815,818,467.23/277,249.60
  6. Step 6: Final answer
    x = 100,327.71

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1.5x scale

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.