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Finding the Fourth Proportional to 529.99, 731.39 and 293.94

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Solution

The fourth proportional to 529.99, 731.39 and 293.94 is: 405.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    529.99 : 731.39 = 293.94 : x
  2. Step 2: Convert to fraction form
    529.99/731.39 = 293.94/x
  3. Step 3: Cross multiply
    529.99x = 731.39 × 293.94
  4. Step 4: Simplify right side
    529.99x = 214,979.65
  5. Step 5: Solve for x
    x = 214,979.65/529.99
  6. Step 6: Final answer
    x = 405.63

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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.