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Finding the Fourth Proportional to 448,665, 619,135.83 and 267,372.78

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Solution

The fourth proportional to 448,665, 619,135.83 and 267,372.78 is: 368,961.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,665 : 619,135.83 = 267,372.78 : x
  2. Step 2: Convert to fraction form
    448,665/619,135.83 = 267,372.78/x
  3. Step 3: Cross multiply
    448,665x = 619,135.83 × 267,372.78
  4. Step 4: Simplify right side
    448,665x = 165,540,068,064.71
  5. Step 5: Solve for x
    x = 165,540,068,064.71/448,665
  6. Step 6: Final answer
    x = 368,961.40

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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.