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Finding the Fourth Proportional to 493.32, 736.38 and 434.94

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Solution

The fourth proportional to 493.32, 736.38 and 434.94 is: 649.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    493.32 : 736.38 = 434.94 : x
  2. Step 2: Convert to fraction form
    493.32/736.38 = 434.94/x
  3. Step 3: Cross multiply
    493.32x = 736.38 × 434.94
  4. Step 4: Simplify right side
    493.32x = 320,281.12
  5. Step 5: Solve for x
    x = 320,281.12/493.32
  6. Step 6: Final answer
    x = 649.24

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.