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Finding the Fourth Proportional to 251.25, 346.71 and 152.94

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Solution

The fourth proportional to 251.25, 346.71 and 152.94 is: 211.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.25 : 346.71 = 152.94 : x
  2. Step 2: Convert to fraction form
    251.25/346.71 = 152.94/x
  3. Step 3: Cross multiply
    251.25x = 346.71 × 152.94
  4. Step 4: Simplify right side
    251.25x = 53,025.83
  5. Step 5: Solve for x
    x = 53,025.83/251.25
  6. Step 6: Final answer
    x = 211.05

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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.