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Finding the Fourth Proportional to 212.99, 293.94 and 124.50

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Solution

The fourth proportional to 212.99, 293.94 and 124.50 is: 171.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    212.99 : 293.94 = 124.50 : x
  2. Step 2: Convert to fraction form
    212.99/293.94 = 124.50/x
  3. Step 3: Cross multiply
    212.99x = 293.94 × 124.50
  4. Step 4: Simplify right side
    212.99x = 36,595.53
  5. Step 5: Solve for x
    x = 36,595.53/212.99
  6. Step 6: Final answer
    x = 171.82

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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.