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Finding the Fourth Proportional to 567.45, 851.49 and 324.18

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Solution

The fourth proportional to 567.45, 851.49 and 324.18 is: 486.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    567.45 : 851.49 = 324.18 : x
  2. Step 2: Convert to fraction form
    567.45/851.49 = 324.18/x
  3. Step 3: Cross multiply
    567.45x = 851.49 × 324.18
  4. Step 4: Simplify right side
    567.45x = 276,036.03
  5. Step 5: Solve for x
    x = 276,036.03/567.45
  6. Step 6: Final answer
    x = 486.45

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Half scale
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Double scale
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Similar ratio
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1.5x scale

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.