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Finding the Fourth Proportional to 554.96, 765.31 and 444.13

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Solution

The fourth proportional to 554.96, 765.31 and 444.13 is: 612.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.96 : 765.31 = 444.13 : x
  2. Step 2: Convert to fraction form
    554.96/765.31 = 444.13/x
  3. Step 3: Cross multiply
    554.96x = 765.31 × 444.13
  4. Step 4: Simplify right side
    554.96x = 339,897.13
  5. Step 5: Solve for x
    x = 339,897.13/554.96
  6. Step 6: Final answer
    x = 612.47

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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.