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Finding the Fourth Proportional to 567.30, 851.15 and 547.30

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Solution

The fourth proportional to 567.30, 851.15 and 547.30 is: 821.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.30 : 851.15 = 547.30 : x
  2. Step 2: Convert to fraction form
    567.30/851.15 = 547.30/x
  3. Step 3: Cross multiply
    567.30x = 851.15 × 547.30
  4. Step 4: Simplify right side
    567.30x = 465,834.40
  5. Step 5: Solve for x
    x = 465,834.40/567.30
  6. Step 6: Final answer
    x = 821.14

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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.