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Finding the Fourth Proportional to 256.46, 383.05 and 232.05

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Solution

The fourth proportional to 256.46, 383.05 and 232.05 is: 346.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    256.46 : 383.05 = 232.05 : x
  2. Step 2: Convert to fraction form
    256.46/383.05 = 232.05/x
  3. Step 3: Cross multiply
    256.46x = 383.05 × 232.05
  4. Step 4: Simplify right side
    256.46x = 88,884.84
  5. Step 5: Solve for x
    x = 88,884.84/256.46
  6. Step 6: Final answer
    x = 346.59

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.