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Finding the Fourth Proportional to 495.56, 681.71 and 475.58

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Solution

The fourth proportional to 495.56, 681.71 and 475.58 is: 654.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    495.56 : 681.71 = 475.58 : x
  2. Step 2: Convert to fraction form
    495.56/681.71 = 475.58/x
  3. Step 3: Cross multiply
    495.56x = 681.71 × 475.58
  4. Step 4: Simplify right side
    495.56x = 324,206.97
  5. Step 5: Solve for x
    x = 324,206.97/495.56
  6. Step 6: Final answer
    x = 654.22

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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.