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Finding the Fourth Proportional to 360.24, 497.13 and 202.87

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Solution

The fourth proportional to 360.24, 497.13 and 202.87 is: 279.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    360.24 : 497.13 = 202.87 : x
  2. Step 2: Convert to fraction form
    360.24/497.13 = 202.87/x
  3. Step 3: Cross multiply
    360.24x = 497.13 × 202.87
  4. Step 4: Simplify right side
    360.24x = 100,852.76
  5. Step 5: Solve for x
    x = 100,852.76/360.24
  6. Step 6: Final answer
    x = 279.96

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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.