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Finding the Fourth Proportional to 435.21, 651.54 and 332.88

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Solution

The fourth proportional to 435.21, 651.54 and 332.88 is: 498.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    435.21 : 651.54 = 332.88 : x
  2. Step 2: Convert to fraction form
    435.21/651.54 = 332.88/x
  3. Step 3: Cross multiply
    435.21x = 651.54 × 332.88
  4. Step 4: Simplify right side
    435.21x = 216,884.64
  5. Step 5: Solve for x
    x = 216,884.64/435.21
  6. Step 6: Final answer
    x = 498.34

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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.