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Finding the Fourth Proportional to 554.09, 765.07 and 344.57

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Solution

The fourth proportional to 554.09, 765.07 and 344.57 is: 475.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.09 : 765.07 = 344.57 : x
  2. Step 2: Convert to fraction form
    554.09/765.07 = 344.57/x
  3. Step 3: Cross multiply
    554.09x = 765.07 × 344.57
  4. Step 4: Simplify right side
    554.09x = 263,615.48
  5. Step 5: Solve for x
    x = 263,615.48/554.09
  6. Step 6: Final answer
    x = 475.77

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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.