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Finding the Fourth Proportional to 177.60, 245.04 and 133.36

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Solution

The fourth proportional to 177.60, 245.04 and 133.36 is: 184.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.60 : 245.04 = 133.36 : x
  2. Step 2: Convert to fraction form
    177.60/245.04 = 133.36/x
  3. Step 3: Cross multiply
    177.60x = 245.04 × 133.36
  4. Step 4: Simplify right side
    177.60x = 32,678.53
  5. Step 5: Solve for x
    x = 32,678.53/177.60
  6. Step 6: Final answer
    x = 184.00

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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.