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Finding the Fourth Proportional to 436.57, 603.33 and 357.76

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Solution

The fourth proportional to 436.57, 603.33 and 357.76 is: 494.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.57 : 603.33 = 357.76 : x
  2. Step 2: Convert to fraction form
    436.57/603.33 = 357.76/x
  3. Step 3: Cross multiply
    436.57x = 603.33 × 357.76
  4. Step 4: Simplify right side
    436.57x = 215,847.34
  5. Step 5: Solve for x
    x = 215,847.34/436.57
  6. Step 6: Final answer
    x = 494.42

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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.