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Finding the Fourth Proportional to 436.99, 603.36 and 271.43

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Solution

The fourth proportional to 436.99, 603.36 and 271.43 is: 374.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.99 : 603.36 = 271.43 : x
  2. Step 2: Convert to fraction form
    436.99/603.36 = 271.43/x
  3. Step 3: Cross multiply
    436.99x = 603.36 × 271.43
  4. Step 4: Simplify right side
    436.99x = 163,770.00
  5. Step 5: Solve for x
    x = 163,770.00/436.99
  6. Step 6: Final answer
    x = 374.77

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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.