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Finding the Fourth Proportional to 245.18, 337.50 and 203.67

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Solution

The fourth proportional to 245.18, 337.50 and 203.67 is: 280.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    245.18 : 337.50 = 203.67 : x
  2. Step 2: Convert to fraction form
    245.18/337.50 = 203.67/x
  3. Step 3: Cross multiply
    245.18x = 337.50 × 203.67
  4. Step 4: Simplify right side
    245.18x = 68,738.63
  5. Step 5: Solve for x
    x = 68,738.63/245.18
  6. Step 6: Final answer
    x = 280.37

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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.