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Finding the Fourth Proportional to 436.88, 602.96 and 247.88

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Solution

The fourth proportional to 436.88, 602.96 and 247.88 is: 342.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.88 : 602.96 = 247.88 : x
  2. Step 2: Convert to fraction form
    436.88/602.96 = 247.88/x
  3. Step 3: Cross multiply
    436.88x = 602.96 × 247.88
  4. Step 4: Simplify right side
    436.88x = 149,461.72
  5. Step 5: Solve for x
    x = 149,461.72/436.88
  6. Step 6: Final answer
    x = 342.11

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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.