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Finding the Fourth Proportional to 462.16, 636.81 and 450.46

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Solution

The fourth proportional to 462.16, 636.81 and 450.46 is: 620.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    462.16 : 636.81 = 450.46 : x
  2. Step 2: Convert to fraction form
    462.16/636.81 = 450.46/x
  3. Step 3: Cross multiply
    462.16x = 636.81 × 450.46
  4. Step 4: Simplify right side
    462.16x = 286,859.07
  5. Step 5: Solve for x
    x = 286,859.07/462.16
  6. Step 6: Final answer
    x = 620.70

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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.