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Finding the Fourth Proportional to 214.81, 296.53 and 165.60

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Solution

The fourth proportional to 214.81, 296.53 and 165.60 is: 228.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    214.81 : 296.53 = 165.60 : x
  2. Step 2: Convert to fraction form
    214.81/296.53 = 165.60/x
  3. Step 3: Cross multiply
    214.81x = 296.53 × 165.60
  4. Step 4: Simplify right side
    214.81x = 49,104.95
  5. Step 5: Solve for x
    x = 49,104.95/214.81
  6. Step 6: Final answer
    x = 228.60

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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.