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Finding the Fourth Proportional to 963.26, 1,445.07 and 305.30

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Solution

The fourth proportional to 963.26, 1,445.07 and 305.30 is: 458.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    963.26 : 1,445.07 = 305.30 : x
  2. Step 2: Convert to fraction form
    963.26/1,445.07 = 305.30/x
  3. Step 3: Cross multiply
    963.26x = 1,445.07 × 305.30
  4. Step 4: Simplify right side
    963.26x = 441,178.34
  5. Step 5: Solve for x
    x = 441,178.34/963.26
  6. Step 6: Final answer
    x = 458.01

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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.