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Finding the Fourth Proportional to 534.15, 737.22 and 445.50

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Solution

The fourth proportional to 534.15, 737.22 and 445.50 is: 614.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.15 : 737.22 = 445.50 : x
  2. Step 2: Convert to fraction form
    534.15/737.22 = 445.50/x
  3. Step 3: Cross multiply
    534.15x = 737.22 × 445.50
  4. Step 4: Simplify right side
    534.15x = 328,431.51
  5. Step 5: Solve for x
    x = 328,431.51/534.15
  6. Step 6: Final answer
    x = 614.87

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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.