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Finding the Fourth Proportional to 367.50, 506.88 and 256.98

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Solution

The fourth proportional to 367.50, 506.88 and 256.98 is: 354.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    367.50 : 506.88 = 256.98 : x
  2. Step 2: Convert to fraction form
    367.50/506.88 = 256.98/x
  3. Step 3: Cross multiply
    367.50x = 506.88 × 256.98
  4. Step 4: Simplify right side
    367.50x = 130,258.02
  5. Step 5: Solve for x
    x = 130,258.02/367.50
  6. Step 6: Final answer
    x = 354.44

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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.