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Finding the Fourth Proportional to 554.98, 765.70 and 333.98

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Solution

The fourth proportional to 554.98, 765.70 and 333.98 is: 460.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.98 : 765.70 = 333.98 : x
  2. Step 2: Convert to fraction form
    554.98/765.70 = 333.98/x
  3. Step 3: Cross multiply
    554.98x = 765.70 × 333.98
  4. Step 4: Simplify right side
    554.98x = 255,728.49
  5. Step 5: Solve for x
    x = 255,728.49/554.98
  6. Step 6: Final answer
    x = 460.79

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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.