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Finding the Fourth Proportional to 214.32, 294.87 and 189.32

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Solution

The fourth proportional to 214.32, 294.87 and 189.32 is: 260.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.32 : 294.87 = 189.32 : x
  2. Step 2: Convert to fraction form
    214.32/294.87 = 189.32/x
  3. Step 3: Cross multiply
    214.32x = 294.87 × 189.32
  4. Step 4: Simplify right side
    214.32x = 55,823.31
  5. Step 5: Solve for x
    x = 55,823.31/214.32
  6. Step 6: Final answer
    x = 260.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.