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Finding the Fourth Proportional to 432.96, 597.96 and 328.56

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Solution

The fourth proportional to 432.96, 597.96 and 328.56 is: 453.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    432.96 : 597.96 = 328.56 : x
  2. Step 2: Convert to fraction form
    432.96/597.96 = 328.56/x
  3. Step 3: Cross multiply
    432.96x = 597.96 × 328.56
  4. Step 4: Simplify right side
    432.96x = 196,465.74
  5. Step 5: Solve for x
    x = 196,465.74/432.96
  6. Step 6: Final answer
    x = 453.77

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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.