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Finding the Fourth Proportional to 178.39, 266.06 and 152.88

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Solution

The fourth proportional to 178.39, 266.06 and 152.88 is: 228.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    178.39 : 266.06 = 152.88 : x
  2. Step 2: Convert to fraction form
    178.39/266.06 = 152.88/x
  3. Step 3: Cross multiply
    178.39x = 266.06 × 152.88
  4. Step 4: Simplify right side
    178.39x = 40,675.25
  5. Step 5: Solve for x
    x = 40,675.25/178.39
  6. Step 6: Final answer
    x = 228.01

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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.