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Finding the Fourth Proportional to 360.59, 540.95 and 144.35

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Solution

The fourth proportional to 360.59, 540.95 and 144.35 is: 216.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.59 : 540.95 = 144.35 : x
  2. Step 2: Convert to fraction form
    360.59/540.95 = 144.35/x
  3. Step 3: Cross multiply
    360.59x = 540.95 × 144.35
  4. Step 4: Simplify right side
    360.59x = 78,085.41
  5. Step 5: Solve for x
    x = 78,085.41/360.59
  6. Step 6: Final answer
    x = 216.55

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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.