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Finding the Fourth Proportional to 534.49, 737.48 and 313.39

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Solution

The fourth proportional to 534.49, 737.48 and 313.39 is: 432.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.49 : 737.48 = 313.39 : x
  2. Step 2: Convert to fraction form
    534.49/737.48 = 313.39/x
  3. Step 3: Cross multiply
    534.49x = 737.48 × 313.39
  4. Step 4: Simplify right side
    534.49x = 231,118.86
  5. Step 5: Solve for x
    x = 231,118.86/534.49
  6. Step 6: Final answer
    x = 432.41

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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.