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Finding the Fourth Proportional to 212.04, 316.80 and 175.56

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Solution

The fourth proportional to 212.04, 316.80 and 175.56 is: 262.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    212.04 : 316.80 = 175.56 : x
  2. Step 2: Convert to fraction form
    212.04/316.80 = 175.56/x
  3. Step 3: Cross multiply
    212.04x = 316.80 × 175.56
  4. Step 4: Simplify right side
    212.04x = 55,617.41
  5. Step 5: Solve for x
    x = 55,617.41/212.04
  6. Step 6: Final answer
    x = 262.30

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.