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Finding the Fourth Proportional to 317.01, 436.99 and 250.49

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Solution

The fourth proportional to 317.01, 436.99 and 250.49 is: 345.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    317.01 : 436.99 = 250.49 : x
  2. Step 2: Convert to fraction form
    317.01/436.99 = 250.49/x
  3. Step 3: Cross multiply
    317.01x = 436.99 × 250.49
  4. Step 4: Simplify right side
    317.01x = 109,459.44
  5. Step 5: Solve for x
    x = 109,459.44/317.01
  6. Step 6: Final answer
    x = 345.29

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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.