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Finding the Fourth Proportional to 569.70, 854.64 and 245.07

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Solution

The fourth proportional to 569.70, 854.64 and 245.07 is: 367.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.70 : 854.64 = 245.07 : x
  2. Step 2: Convert to fraction form
    569.70/854.64 = 245.07/x
  3. Step 3: Cross multiply
    569.70x = 854.64 × 245.07
  4. Step 4: Simplify right side
    569.70x = 209,446.62
  5. Step 5: Solve for x
    x = 209,446.62/569.70
  6. Step 6: Final answer
    x = 367.64

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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.