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Finding the Fourth Proportional to 526.15, 725.97 and 293.28

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Solution

The fourth proportional to 526.15, 725.97 and 293.28 is: 404.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.15 : 725.97 = 293.28 : x
  2. Step 2: Convert to fraction form
    526.15/725.97 = 293.28/x
  3. Step 3: Cross multiply
    526.15x = 725.97 × 293.28
  4. Step 4: Simplify right side
    526.15x = 212,912.48
  5. Step 5: Solve for x
    x = 212,912.48/526.15
  6. Step 6: Final answer
    x = 404.66

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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.