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Finding the Fourth Proportional to 345.04, 475.32 and 325.84

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Solution

The fourth proportional to 345.04, 475.32 and 325.84 is: 448.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    345.04 : 475.32 = 325.84 : x
  2. Step 2: Convert to fraction form
    345.04/475.32 = 325.84/x
  3. Step 3: Cross multiply
    345.04x = 475.32 × 325.84
  4. Step 4: Simplify right side
    345.04x = 154,878.27
  5. Step 5: Solve for x
    x = 154,878.27/345.04
  6. Step 6: Final answer
    x = 448.87

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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.