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Finding the Fourth Proportional to 526.37, 725.73 and 401.72

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Solution

The fourth proportional to 526.37, 725.73 and 401.72 is: 553.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.37 : 725.73 = 401.72 : x
  2. Step 2: Convert to fraction form
    526.37/725.73 = 401.72/x
  3. Step 3: Cross multiply
    526.37x = 725.73 × 401.72
  4. Step 4: Simplify right side
    526.37x = 291,540.26
  5. Step 5: Solve for x
    x = 291,540.26/526.37
  6. Step 6: Final answer
    x = 553.87

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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.