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Finding the Fourth Proportional to 360.77, 540.27 and 302.85

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Solution

The fourth proportional to 360.77, 540.27 and 302.85 is: 453.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.77 : 540.27 = 302.85 : x
  2. Step 2: Convert to fraction form
    360.77/540.27 = 302.85/x
  3. Step 3: Cross multiply
    360.77x = 540.27 × 302.85
  4. Step 4: Simplify right side
    360.77x = 163,620.77
  5. Step 5: Solve for x
    x = 163,620.77/360.77
  6. Step 6: Final answer
    x = 453.54

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.