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Finding the Fourth Proportional to 457.25, 631.01 and 250.25

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Solution

The fourth proportional to 457.25, 631.01 and 250.25 is: 345.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    457.25 : 631.01 = 250.25 : x
  2. Step 2: Convert to fraction form
    457.25/631.01 = 250.25/x
  3. Step 3: Cross multiply
    457.25x = 631.01 × 250.25
  4. Step 4: Simplify right side
    457.25x = 157,910.25
  5. Step 5: Solve for x
    x = 157,910.25/457.25
  6. Step 6: Final answer
    x = 345.35

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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.