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Finding the Fourth Proportional to 495.18, 682.56 and 454.50

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Solution

The fourth proportional to 495.18, 682.56 and 454.50 is: 626.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.18 : 682.56 = 454.50 : x
  2. Step 2: Convert to fraction form
    495.18/682.56 = 454.50/x
  3. Step 3: Cross multiply
    495.18x = 682.56 × 454.50
  4. Step 4: Simplify right side
    495.18x = 310,223.52
  5. Step 5: Solve for x
    x = 310,223.52/495.18
  6. Step 6: Final answer
    x = 626.49

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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.