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Finding the Fourth Proportional to 535.75, 738.79 and 483.37

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Solution

The fourth proportional to 535.75, 738.79 and 483.37 is: 666.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.75 : 738.79 = 483.37 : x
  2. Step 2: Convert to fraction form
    535.75/738.79 = 483.37/x
  3. Step 3: Cross multiply
    535.75x = 738.79 × 483.37
  4. Step 4: Simplify right side
    535.75x = 357,108.92
  5. Step 5: Solve for x
    x = 357,108.92/535.75
  6. Step 6: Final answer
    x = 666.56

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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.