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Finding the Fourth Proportional to 177.40, 244.88 and 107.51

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Solution

The fourth proportional to 177.40, 244.88 and 107.51 is: 148.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    177.40 : 244.88 = 107.51 : x
  2. Step 2: Convert to fraction form
    177.40/244.88 = 107.51/x
  3. Step 3: Cross multiply
    177.40x = 244.88 × 107.51
  4. Step 4: Simplify right side
    177.40x = 26,325.69
  5. Step 5: Solve for x
    x = 26,325.69/177.40
  6. Step 6: Final answer
    x = 148.40

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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.