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Finding the Fourth Proportional to 476.90, 657.82 and 301.94

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Solution

The fourth proportional to 476.90, 657.82 and 301.94 is: 416.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    476.90 : 657.82 = 301.94 : x
  2. Step 2: Convert to fraction form
    476.90/657.82 = 301.94/x
  3. Step 3: Cross multiply
    476.90x = 657.82 × 301.94
  4. Step 4: Simplify right side
    476.90x = 198,621.73
  5. Step 5: Solve for x
    x = 198,621.73/476.90
  6. Step 6: Final answer
    x = 416.49

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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.