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Finding the Fourth Proportional to 535.51, 738.56 and 522.83

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Solution

The fourth proportional to 535.51, 738.56 and 522.83 is: 721.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    535.51 : 738.56 = 522.83 : x
  2. Step 2: Convert to fraction form
    535.51/738.56 = 522.83/x
  3. Step 3: Cross multiply
    535.51x = 738.56 × 522.83
  4. Step 4: Simplify right side
    535.51x = 386,141.32
  5. Step 5: Solve for x
    x = 386,141.32/535.51
  6. Step 6: Final answer
    x = 721.07

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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.