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Finding the Fourth Proportional to 462,928, 638,844.48 and 250,960

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Solution

The fourth proportional to 462,928, 638,844.48 and 250,960 is: 346,326.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    462,928 : 638,844.48 = 250,960 : x
  2. Step 2: Convert to fraction form
    462,928/638,844.48 = 250,960/x
  3. Step 3: Cross multiply
    462,928x = 638,844.48 × 250,960
  4. Step 4: Simplify right side
    462,928x = 160,324,410,700.80
  5. Step 5: Solve for x
    x = 160,324,410,700.80/462,928
  6. Step 6: Final answer
    x = 346,326.88

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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.