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Finding the Fourth Proportional to 540.70, 746.15 and 301.44

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Solution

The fourth proportional to 540.70, 746.15 and 301.44 is: 415.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    540.70 : 746.15 = 301.44 : x
  2. Step 2: Convert to fraction form
    540.70/746.15 = 301.44/x
  3. Step 3: Cross multiply
    540.70x = 746.15 × 301.44
  4. Step 4: Simplify right side
    540.70x = 224,919.46
  5. Step 5: Solve for x
    x = 224,919.46/540.70
  6. Step 6: Final answer
    x = 415.98

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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.