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Finding the Fourth Proportional to 552.04, 761.81 and 303.35

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Solution

The fourth proportional to 552.04, 761.81 and 303.35 is: 418.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    552.04 : 761.81 = 303.35 : x
  2. Step 2: Convert to fraction form
    552.04/761.81 = 303.35/x
  3. Step 3: Cross multiply
    552.04x = 761.81 × 303.35
  4. Step 4: Simplify right side
    552.04x = 231,089.74
  5. Step 5: Solve for x
    x = 231,089.74/552.04
  6. Step 6: Final answer
    x = 418.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.