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Finding the Fourth Proportional to 554.41, 759.55 and 533.65

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Solution

The fourth proportional to 554.41, 759.55 and 533.65 is: 731.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.41 : 759.55 = 533.65 : x
  2. Step 2: Convert to fraction form
    554.41/759.55 = 533.65/x
  3. Step 3: Cross multiply
    554.41x = 759.55 × 533.65
  4. Step 4: Simplify right side
    554.41x = 405,331.19
  5. Step 5: Solve for x
    x = 405,331.19/554.41
  6. Step 6: Final answer
    x = 731.10

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.