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Finding the Fourth Proportional to 268.48, 400.45 and 244.90

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Solution

The fourth proportional to 268.48, 400.45 and 244.90 is: 365.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.48 : 400.45 = 244.90 : x
  2. Step 2: Convert to fraction form
    268.48/400.45 = 244.90/x
  3. Step 3: Cross multiply
    268.48x = 400.45 × 244.90
  4. Step 4: Simplify right side
    268.48x = 98,068.20
  5. Step 5: Solve for x
    x = 98,068.20/268.48
  6. Step 6: Final answer
    x = 365.28

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.