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Finding the Fourth Proportional to 569.56, 853.66 and 277

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Solution

The fourth proportional to 569.56, 853.66 and 277 is: 415.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.56 : 853.66 = 277 : x
  2. Step 2: Convert to fraction form
    569.56/853.66 = 277/x
  3. Step 3: Cross multiply
    569.56x = 853.66 × 277
  4. Step 4: Simplify right side
    569.56x = 236,463.82
  5. Step 5: Solve for x
    x = 236,463.82/569.56
  6. Step 6: Final answer
    x = 415.17

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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.