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Finding the Fourth Proportional to 451.67, 623.31 and 265.16

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Solution

The fourth proportional to 451.67, 623.31 and 265.16 is: 365.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    451.67 : 623.31 = 265.16 : x
  2. Step 2: Convert to fraction form
    451.67/623.31 = 265.16/x
  3. Step 3: Cross multiply
    451.67x = 623.31 × 265.16
  4. Step 4: Simplify right side
    451.67x = 165,277.44
  5. Step 5: Solve for x
    x = 165,277.44/451.67
  6. Step 6: Final answer
    x = 365.93

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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.