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Finding the Fourth Proportional to 233.85, 322.00 and 228.72

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Solution

The fourth proportional to 233.85, 322.00 and 228.72 is: 314.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    233.85 : 322.00 = 228.72 : x
  2. Step 2: Convert to fraction form
    233.85/322.00 = 228.72/x
  3. Step 3: Cross multiply
    233.85x = 322.00 × 228.72
  4. Step 4: Simplify right side
    233.85x = 73,649.50
  5. Step 5: Solve for x
    x = 73,649.50/233.85
  6. Step 6: Final answer
    x = 314.95

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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.