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Finding the Fourth Proportional to 554.80, 765.26 and 377.71

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Solution

The fourth proportional to 554.80, 765.26 and 377.71 is: 521.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.80 : 765.26 = 377.71 : x
  2. Step 2: Convert to fraction form
    554.80/765.26 = 377.71/x
  3. Step 3: Cross multiply
    554.80x = 765.26 × 377.71
  4. Step 4: Simplify right side
    554.80x = 289,048.81
  5. Step 5: Solve for x
    x = 289,048.81/554.80
  6. Step 6: Final answer
    x = 521.00

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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.