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Finding the Fourth Proportional to 803.03, 1,204.28 and 282.94

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Solution

The fourth proportional to 803.03, 1,204.28 and 282.94 is: 424.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    803.03 : 1,204.28 = 282.94 : x
  2. Step 2: Convert to fraction form
    803.03/1,204.28 = 282.94/x
  3. Step 3: Cross multiply
    803.03x = 1,204.28 × 282.94
  4. Step 4: Simplify right side
    803.03x = 340,731.55
  5. Step 5: Solve for x
    x = 340,731.55/803.03
  6. Step 6: Final answer
    x = 424.31

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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.