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Finding the Fourth Proportional to 432.09, 596.29 and 266.40

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Solution

The fourth proportional to 432.09, 596.29 and 266.40 is: 367.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    432.09 : 596.29 = 266.40 : x
  2. Step 2: Convert to fraction form
    432.09/596.29 = 266.40/x
  3. Step 3: Cross multiply
    432.09x = 596.29 × 266.40
  4. Step 4: Simplify right side
    432.09x = 158,851.66
  5. Step 5: Solve for x
    x = 158,851.66/432.09
  6. Step 6: Final answer
    x = 367.64

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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.