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Finding the Fourth Proportional to 436.73, 602.43 and 281.48

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Solution

The fourth proportional to 436.73, 602.43 and 281.48 is: 388.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.73 : 602.43 = 281.48 : x
  2. Step 2: Convert to fraction form
    436.73/602.43 = 281.48/x
  3. Step 3: Cross multiply
    436.73x = 602.43 × 281.48
  4. Step 4: Simplify right side
    436.73x = 169,572.00
  5. Step 5: Solve for x
    x = 169,572.00/436.73
  6. Step 6: Final answer
    x = 388.28

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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.