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Finding the Fourth Proportional to 432.79, 597.26 and 236.31

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Solution

The fourth proportional to 432.79, 597.26 and 236.31 is: 326.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    432.79 : 597.26 = 236.31 : x
  2. Step 2: Convert to fraction form
    432.79/597.26 = 236.31/x
  3. Step 3: Cross multiply
    432.79x = 597.26 × 236.31
  4. Step 4: Simplify right side
    432.79x = 141,138.51
  5. Step 5: Solve for x
    x = 141,138.51/432.79
  6. Step 6: Final answer
    x = 326.11

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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.