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Finding the Fourth Proportional to 295.50, 407.93 and 202.49

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Solution

The fourth proportional to 295.50, 407.93 and 202.49 is: 279.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    295.50 : 407.93 = 202.49 : x
  2. Step 2: Convert to fraction form
    295.50/407.93 = 202.49/x
  3. Step 3: Cross multiply
    295.50x = 407.93 × 202.49
  4. Step 4: Simplify right side
    295.50x = 82,601.75
  5. Step 5: Solve for x
    x = 82,601.75/295.50
  6. Step 6: Final answer
    x = 279.53

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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.