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Finding the Fourth Proportional to 804.42, 1,206.14 and 335.76

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Solution

The fourth proportional to 804.42, 1,206.14 and 335.76 is: 503.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    804.42 : 1,206.14 = 335.76 : x
  2. Step 2: Convert to fraction form
    804.42/1,206.14 = 335.76/x
  3. Step 3: Cross multiply
    804.42x = 1,206.14 × 335.76
  4. Step 4: Simplify right side
    804.42x = 404,973.57
  5. Step 5: Solve for x
    x = 404,973.57/804.42
  6. Step 6: Final answer
    x = 503.44

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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.