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Finding the Fourth Proportional to 463,254, 639,290.52 and 251,286

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Solution

The fourth proportional to 463,254, 639,290.52 and 251,286 is: 346,774.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    463,254 : 639,290.52 = 251,286 : x
  2. Step 2: Convert to fraction form
    463,254/639,290.52 = 251,286/x
  3. Step 3: Cross multiply
    463,254x = 639,290.52 × 251,286
  4. Step 4: Simplify right side
    463,254x = 160,644,757,608.72
  5. Step 5: Solve for x
    x = 160,644,757,608.72/463,254
  6. Step 6: Final answer
    x = 346,774.68

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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.