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Finding the Fourth Proportional to 437.45, 603.55 and 248.37

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Solution

The fourth proportional to 437.45, 603.55 and 248.37 is: 342.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    437.45 : 603.55 = 248.37 : x
  2. Step 2: Convert to fraction form
    437.45/603.55 = 248.37/x
  3. Step 3: Cross multiply
    437.45x = 603.55 × 248.37
  4. Step 4: Simplify right side
    437.45x = 149,899.45
  5. Step 5: Solve for x
    x = 149,899.45/437.45
  6. Step 6: Final answer
    x = 342.67

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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.