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Finding the Fourth Proportional to 962.07, 1,443.09 and 303.92

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Solution

The fourth proportional to 962.07, 1,443.09 and 303.92 is: 455.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    962.07 : 1,443.09 = 303.92 : x
  2. Step 2: Convert to fraction form
    962.07/1,443.09 = 303.92/x
  3. Step 3: Cross multiply
    962.07x = 1,443.09 × 303.92
  4. Step 4: Simplify right side
    962.07x = 438,576.70
  5. Step 5: Solve for x
    x = 438,576.70/962.07
  6. Step 6: Final answer
    x = 455.87

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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.