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Finding the Fourth Proportional to 554.11, 764.53 and 377.23

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Solution

The fourth proportional to 554.11, 764.53 and 377.23 is: 520.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.11 : 764.53 = 377.23 : x
  2. Step 2: Convert to fraction form
    554.11/764.53 = 377.23/x
  3. Step 3: Cross multiply
    554.11x = 764.53 × 377.23
  4. Step 4: Simplify right side
    554.11x = 288,403.65
  5. Step 5: Solve for x
    x = 288,403.65/554.11
  6. Step 6: Final answer
    x = 520.48

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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.