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Finding the Fourth Proportional to 325.35, 448.72 and 207.34

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Solution

The fourth proportional to 325.35, 448.72 and 207.34 is: 285.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.35 : 448.72 = 207.34 : x
  2. Step 2: Convert to fraction form
    325.35/448.72 = 207.34/x
  3. Step 3: Cross multiply
    325.35x = 448.72 × 207.34
  4. Step 4: Simplify right side
    325.35x = 93,035.36
  5. Step 5: Solve for x
    x = 93,035.36/325.35
  6. Step 6: Final answer
    x = 285.96

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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.