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Finding the Fourth Proportional to 567.48, 851.48 and 423.48

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Solution

The fourth proportional to 567.48, 851.48 and 423.48 is: 635.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.48 : 851.48 = 423.48 : x
  2. Step 2: Convert to fraction form
    567.48/851.48 = 423.48/x
  3. Step 3: Cross multiply
    567.48x = 851.48 × 423.48
  4. Step 4: Simplify right side
    567.48x = 360,584.75
  5. Step 5: Solve for x
    x = 360,584.75/567.48
  6. Step 6: Final answer
    x = 635.41

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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.