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Finding the Fourth Proportional to 277.54, 383.37 and 212.84

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Solution

The fourth proportional to 277.54, 383.37 and 212.84 is: 294.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.54 : 383.37 = 212.84 : x
  2. Step 2: Convert to fraction form
    277.54/383.37 = 212.84/x
  3. Step 3: Cross multiply
    277.54x = 383.37 × 212.84
  4. Step 4: Simplify right side
    277.54x = 81,595.19
  5. Step 5: Solve for x
    x = 81,595.19/277.54
  6. Step 6: Final answer
    x = 294.00

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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.