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Finding the Fourth Proportional to 174.39, 240.90 and 152.52

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Solution

The fourth proportional to 174.39, 240.90 and 152.52 is: 210.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    174.39 : 240.90 = 152.52 : x
  2. Step 2: Convert to fraction form
    174.39/240.90 = 152.52/x
  3. Step 3: Cross multiply
    174.39x = 240.90 × 152.52
  4. Step 4: Simplify right side
    174.39x = 36,742.07
  5. Step 5: Solve for x
    x = 36,742.07/174.39
  6. Step 6: Final answer
    x = 210.69

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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.