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Finding the Fourth Proportional to 425.48, 636.87 and 367.16

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Solution

The fourth proportional to 425.48, 636.87 and 367.16 is: 549.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    425.48 : 636.87 = 367.16 : x
  2. Step 2: Convert to fraction form
    425.48/636.87 = 367.16/x
  3. Step 3: Cross multiply
    425.48x = 636.87 × 367.16
  4. Step 4: Simplify right side
    425.48x = 233,833.19
  5. Step 5: Solve for x
    x = 233,833.19/425.48
  6. Step 6: Final answer
    x = 549.58

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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.