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Finding the Fourth Proportional to 432.09, 596.30 and 255.11

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Solution

The fourth proportional to 432.09, 596.30 and 255.11 is: 352.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    432.09 : 596.30 = 255.11 : x
  2. Step 2: Convert to fraction form
    432.09/596.30 = 255.11/x
  3. Step 3: Cross multiply
    432.09x = 596.30 × 255.11
  4. Step 4: Simplify right side
    432.09x = 152,117.84
  5. Step 5: Solve for x
    x = 152,117.84/432.09
  6. Step 6: Final answer
    x = 352.05

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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.