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Finding the Fourth Proportional to 230.55, 348.28 and 228.52

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Solution

The fourth proportional to 230.55, 348.28 and 228.52 is: 345.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    230.55 : 348.28 = 228.52 : x
  2. Step 2: Convert to fraction form
    230.55/348.28 = 228.52/x
  3. Step 3: Cross multiply
    230.55x = 348.28 × 228.52
  4. Step 4: Simplify right side
    230.55x = 79,588.95
  5. Step 5: Solve for x
    x = 79,588.95/230.55
  6. Step 6: Final answer
    x = 345.21

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.