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Finding the Fourth Proportional to 569.15, 853.71 and 158.28

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Solution

The fourth proportional to 569.15, 853.71 and 158.28 is: 237.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.15 : 853.71 = 158.28 : x
  2. Step 2: Convert to fraction form
    569.15/853.71 = 158.28/x
  3. Step 3: Cross multiply
    569.15x = 853.71 × 158.28
  4. Step 4: Simplify right side
    569.15x = 135,125.22
  5. Step 5: Solve for x
    x = 135,125.22/569.15
  6. Step 6: Final answer
    x = 237.42

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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.