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Finding the Fourth Proportional to 569.57, 854.35 and 158.70

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Solution

The fourth proportional to 569.57, 854.35 and 158.70 is: 238.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    569.57 : 854.35 = 158.70 : x
  2. Step 2: Convert to fraction form
    569.57/854.35 = 158.70/x
  3. Step 3: Cross multiply
    569.57x = 854.35 × 158.70
  4. Step 4: Simplify right side
    569.57x = 135,585.10
  5. Step 5: Solve for x
    x = 135,585.10/569.57
  6. Step 6: Final answer
    x = 238.05

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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.