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Finding the Fourth Proportional to 461.77, 636.56 and 351.05

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Solution

The fourth proportional to 461.77, 636.56 and 351.05 is: 483.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    461.77 : 636.56 = 351.05 : x
  2. Step 2: Convert to fraction form
    461.77/636.56 = 351.05/x
  3. Step 3: Cross multiply
    461.77x = 636.56 × 351.05
  4. Step 4: Simplify right side
    461.77x = 223,461.21
  5. Step 5: Solve for x
    x = 223,461.21/461.77
  6. Step 6: Final answer
    x = 483.93

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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.