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Finding the Fourth Proportional to 567.55, 851.28 and 275.07

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Solution

The fourth proportional to 567.55, 851.28 and 275.07 is: 412.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.55 : 851.28 = 275.07 : x
  2. Step 2: Convert to fraction form
    567.55/851.28 = 275.07/x
  3. Step 3: Cross multiply
    567.55x = 851.28 × 275.07
  4. Step 4: Simplify right side
    567.55x = 234,161.59
  5. Step 5: Solve for x
    x = 234,161.59/567.55
  6. Step 6: Final answer
    x = 412.58

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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.