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Finding the Fourth Proportional to 572.16, 789.73 and 336.09

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Solution

The fourth proportional to 572.16, 789.73 and 336.09 is: 463.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    572.16 : 789.73 = 336.09 : x
  2. Step 2: Convert to fraction form
    572.16/789.73 = 336.09/x
  3. Step 3: Cross multiply
    572.16x = 789.73 × 336.09
  4. Step 4: Simplify right side
    572.16x = 265,420.36
  5. Step 5: Solve for x
    x = 265,420.36/572.16
  6. Step 6: Final answer
    x = 463.89

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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.