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Finding the Fourth Proportional to 267.30, 370.58 and 247.05

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Solution

The fourth proportional to 267.30, 370.58 and 247.05 is: 342.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    267.30 : 370.58 = 247.05 : x
  2. Step 2: Convert to fraction form
    267.30/370.58 = 247.05/x
  3. Step 3: Cross multiply
    267.30x = 370.58 × 247.05
  4. Step 4: Simplify right side
    267.30x = 91,550.55
  5. Step 5: Solve for x
    x = 91,550.55/267.30
  6. Step 6: Final answer
    x = 342.50

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.