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Finding the Fourth Proportional to 360.58, 497.60 and 203.22

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Solution

The fourth proportional to 360.58, 497.60 and 203.22 is: 280.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.58 : 497.60 = 203.22 : x
  2. Step 2: Convert to fraction form
    360.58/497.60 = 203.22/x
  3. Step 3: Cross multiply
    360.58x = 497.60 × 203.22
  4. Step 4: Simplify right side
    360.58x = 101,118.77
  5. Step 5: Solve for x
    x = 101,118.77/360.58
  6. Step 6: Final answer
    x = 280.43

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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.