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Finding the Fourth Proportional to 268.01, 370.87 and 228.61

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Solution

The fourth proportional to 268.01, 370.87 and 228.61 is: 316.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    268.01 : 370.87 = 228.61 : x
  2. Step 2: Convert to fraction form
    268.01/370.87 = 228.61/x
  3. Step 3: Cross multiply
    268.01x = 370.87 × 228.61
  4. Step 4: Simplify right side
    268.01x = 84,782.40
  5. Step 5: Solve for x
    x = 84,782.40/268.01
  6. Step 6: Final answer
    x = 316.34

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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.