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Finding the Fourth Proportional to 360.59, 497.57 and 203.20

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Solution

The fourth proportional to 360.59, 497.57 and 203.20 is: 280.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.59 : 497.57 = 203.20 : x
  2. Step 2: Convert to fraction form
    360.59/497.57 = 203.20/x
  3. Step 3: Cross multiply
    360.59x = 497.57 × 203.20
  4. Step 4: Simplify right side
    360.59x = 101,106.22
  5. Step 5: Solve for x
    x = 101,106.22/360.59
  6. Step 6: Final answer
    x = 280.39

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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.