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Finding the Fourth Proportional to 436.55, 653.99 and 224.87

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Solution

The fourth proportional to 436.55, 653.99 and 224.87 is: 336.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.55 : 653.99 = 224.87 : x
  2. Step 2: Convert to fraction form
    436.55/653.99 = 224.87/x
  3. Step 3: Cross multiply
    436.55x = 653.99 × 224.87
  4. Step 4: Simplify right side
    436.55x = 147,058.34
  5. Step 5: Solve for x
    x = 147,058.34/436.55
  6. Step 6: Final answer
    x = 336.87

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.