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Finding the Fourth Proportional to 278,551, 384,716.88 and 187,750.48

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Solution

The fourth proportional to 278,551, 384,716.88 and 187,750.48 is: 259,308.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,551 : 384,716.88 = 187,750.48 : x
  2. Step 2: Convert to fraction form
    278,551/384,716.88 = 187,750.48/x
  3. Step 3: Cross multiply
    278,551x = 384,716.88 × 187,750.48
  4. Step 4: Simplify right side
    278,551x = 72,230,778,884.10
  5. Step 5: Solve for x
    x = 72,230,778,884.10/278,551
  6. Step 6: Final answer
    x = 259,308.99

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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.