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Finding the Fourth Proportional to 529.62, 730.84 and 293.56

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Solution

The fourth proportional to 529.62, 730.84 and 293.56 is: 405.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.62 : 730.84 = 293.56 : x
  2. Step 2: Convert to fraction form
    529.62/730.84 = 293.56/x
  3. Step 3: Cross multiply
    529.62x = 730.84 × 293.56
  4. Step 4: Simplify right side
    529.62x = 214,545.39
  5. Step 5: Solve for x
    x = 214,545.39/529.62
  6. Step 6: Final answer
    x = 405.09

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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.