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Finding the Fourth Proportional to 534.80, 737.93 and 313.71

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Solution

The fourth proportional to 534.80, 737.93 and 313.71 is: 432.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.80 : 737.93 = 313.71 : x
  2. Step 2: Convert to fraction form
    534.80/737.93 = 313.71/x
  3. Step 3: Cross multiply
    534.80x = 737.93 × 313.71
  4. Step 4: Simplify right side
    534.80x = 231,494.45
  5. Step 5: Solve for x
    x = 231,494.45/534.80
  6. Step 6: Final answer
    x = 432.87

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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.