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Finding the Fourth Proportional to 416.74, 624.76 and 262.62

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Solution

The fourth proportional to 416.74, 624.76 and 262.62 is: 393.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    416.74 : 624.76 = 262.62 : x
  2. Step 2: Convert to fraction form
    416.74/624.76 = 262.62/x
  3. Step 3: Cross multiply
    416.74x = 624.76 × 262.62
  4. Step 4: Simplify right side
    416.74x = 164,073.81
  5. Step 5: Solve for x
    x = 164,073.81/416.74
  6. Step 6: Final answer
    x = 393.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.