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Finding the Fourth Proportional to 342.04, 471.65 and 223.98

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Solution

The fourth proportional to 342.04, 471.65 and 223.98 is: 308.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    342.04 : 471.65 = 223.98 : x
  2. Step 2: Convert to fraction form
    342.04/471.65 = 223.98/x
  3. Step 3: Cross multiply
    342.04x = 471.65 × 223.98
  4. Step 4: Simplify right side
    342.04x = 105,638.57
  5. Step 5: Solve for x
    x = 105,638.57/342.04
  6. Step 6: Final answer
    x = 308.85

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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.