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Finding the Fourth Proportional to 395.32, 592.44 and 287.08

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Solution

The fourth proportional to 395.32, 592.44 and 287.08 is: 430.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    395.32 : 592.44 = 287.08 : x
  2. Step 2: Convert to fraction form
    395.32/592.44 = 287.08/x
  3. Step 3: Cross multiply
    395.32x = 592.44 × 287.08
  4. Step 4: Simplify right side
    395.32x = 170,077.68
  5. Step 5: Solve for x
    x = 170,077.68/395.32
  6. Step 6: Final answer
    x = 430.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.