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Finding the Fourth Proportional to 187.02, 278.64 and 177.84

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Solution

The fourth proportional to 187.02, 278.64 and 177.84 is: 264.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    187.02 : 278.64 = 177.84 : x
  2. Step 2: Convert to fraction form
    187.02/278.64 = 177.84/x
  3. Step 3: Cross multiply
    187.02x = 278.64 × 177.84
  4. Step 4: Simplify right side
    187.02x = 49,553.34
  5. Step 5: Solve for x
    x = 49,553.34/187.02
  6. Step 6: Final answer
    x = 264.96

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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.