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Finding the Fourth Proportional to 318,748.44, 477,794.61 and 141,339

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Solution

The fourth proportional to 318,748.44, 477,794.61 and 141,339 is: 211,863.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,748.44 : 477,794.61 = 141,339 : x
  2. Step 2: Convert to fraction form
    318,748.44/477,794.61 = 141,339/x
  3. Step 3: Cross multiply
    318,748.44x = 477,794.61 × 141,339
  4. Step 4: Simplify right side
    318,748.44x = 67,531,012,382.79
  5. Step 5: Solve for x
    x = 67,531,012,382.79/318,748.44
  6. Step 6: Final answer
    x = 211,863.04

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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.