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Finding the Fourth Proportional to 541.88, 747.52 and 331.69

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Solution

The fourth proportional to 541.88, 747.52 and 331.69 is: 457.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    541.88 : 747.52 = 331.69 : x
  2. Step 2: Convert to fraction form
    541.88/747.52 = 331.69/x
  3. Step 3: Cross multiply
    541.88x = 747.52 × 331.69
  4. Step 4: Simplify right side
    541.88x = 247,943.61
  5. Step 5: Solve for x
    x = 247,943.61/541.88
  6. Step 6: Final answer
    x = 457.56

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1.5x scale

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.