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Finding the Fourth Proportional to 534.50, 736.05 and 512.02

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Solution

The fourth proportional to 534.50, 736.05 and 512.02 is: 705.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    534.50 : 736.05 = 512.02 : x
  2. Step 2: Convert to fraction form
    534.50/736.05 = 512.02/x
  3. Step 3: Cross multiply
    534.50x = 736.05 × 512.02
  4. Step 4: Simplify right side
    534.50x = 376,872.32
  5. Step 5: Solve for x
    x = 376,872.32/534.50
  6. Step 6: Final answer
    x = 705.09

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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.