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Finding the Fourth Proportional to 569.70, 854.45 and 204.49

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Solution

The fourth proportional to 569.70, 854.45 and 204.49 is: 306.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.70 : 854.45 = 204.49 : x
  2. Step 2: Convert to fraction form
    569.70/854.45 = 204.49/x
  3. Step 3: Cross multiply
    569.70x = 854.45 × 204.49
  4. Step 4: Simplify right side
    569.70x = 174,727.29
  5. Step 5: Solve for x
    x = 174,727.29/569.70
  6. Step 6: Final answer
    x = 306.70

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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.