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Finding the Fourth Proportional to 436.02, 601.16 and 331.22

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Solution

The fourth proportional to 436.02, 601.16 and 331.22 is: 456.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.02 : 601.16 = 331.22 : x
  2. Step 2: Convert to fraction form
    436.02/601.16 = 331.22/x
  3. Step 3: Cross multiply
    436.02x = 601.16 × 331.22
  4. Step 4: Simplify right side
    436.02x = 199,111.55
  5. Step 5: Solve for x
    x = 199,111.55/436.02
  6. Step 6: Final answer
    x = 456.66

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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.