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Finding the Fourth Proportional to 325.32, 448.48 and 207.24

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Solution

The fourth proportional to 325.32, 448.48 and 207.24 is: 285.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    325.32 : 448.48 = 207.24 : x
  2. Step 2: Convert to fraction form
    325.32/448.48 = 207.24/x
  3. Step 3: Cross multiply
    325.32x = 448.48 × 207.24
  4. Step 4: Simplify right side
    325.32x = 92,943.00
  5. Step 5: Solve for x
    x = 92,943.00/325.32
  6. Step 6: Final answer
    x = 285.70

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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.