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Finding the Fourth Proportional to 730.97, 1,096.45 and 320.00

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Solution

The fourth proportional to 730.97, 1,096.45 and 320.00 is: 479.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    730.97 : 1,096.45 = 320.00 : x
  2. Step 2: Convert to fraction form
    730.97/1,096.45 = 320.00/x
  3. Step 3: Cross multiply
    730.97x = 1,096.45 × 320.00
  4. Step 4: Simplify right side
    730.97x = 350,857.72
  5. Step 5: Solve for x
    x = 350,857.72/730.97
  6. Step 6: Final answer
    x = 479.99

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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.