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Finding the Fourth Proportional to 251.60, 374.18 and 251.60

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Solution

The fourth proportional to 251.60, 374.18 and 251.60 is: 374.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    251.60 : 374.18 = 251.60 : x
  2. Step 2: Convert to fraction form
    251.60/374.18 = 251.60/x
  3. Step 3: Cross multiply
    251.60x = 374.18 × 251.60
  4. Step 4: Simplify right side
    251.60x = 94,143.69
  5. Step 5: Solve for x
    x = 94,143.69/251.60
  6. Step 6: Final answer
    x = 374.18

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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.