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Finding the Fourth Proportional to 178.66, 247.63 and 175.60

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Solution

The fourth proportional to 178.66, 247.63 and 175.60 is: 243.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.66 : 247.63 = 175.60 : x
  2. Step 2: Convert to fraction form
    178.66/247.63 = 175.60/x
  3. Step 3: Cross multiply
    178.66x = 247.63 × 175.60
  4. Step 4: Simplify right side
    178.66x = 43,483.83
  5. Step 5: Solve for x
    x = 43,483.83/178.66
  6. Step 6: Final answer
    x = 243.39

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.