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Finding the Fourth Proportional to 803.24, 1,204.72 and 370.36

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Solution

The fourth proportional to 803.24, 1,204.72 and 370.36 is: 555.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    803.24 : 1,204.72 = 370.36 : x
  2. Step 2: Convert to fraction form
    803.24/1,204.72 = 370.36/x
  3. Step 3: Cross multiply
    803.24x = 1,204.72 × 370.36
  4. Step 4: Simplify right side
    803.24x = 446,180.10
  5. Step 5: Solve for x
    x = 446,180.10/803.24
  6. Step 6: Final answer
    x = 555.48

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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.