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Finding the Fourth Proportional to 436.11, 653.80 and 298.82

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Solution

The fourth proportional to 436.11, 653.80 and 298.82 is: 447.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    436.11 : 653.80 = 298.82 : x
  2. Step 2: Convert to fraction form
    436.11/653.80 = 298.82/x
  3. Step 3: Cross multiply
    436.11x = 653.80 × 298.82
  4. Step 4: Simplify right side
    436.11x = 195,368.52
  5. Step 5: Solve for x
    x = 195,368.52/436.11
  6. Step 6: Final answer
    x = 447.98

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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.