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Finding the Fourth Proportional to 453.79, 681.59 and 299.98

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Solution

The fourth proportional to 453.79, 681.59 and 299.98 is: 450.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.79 : 681.59 = 299.98 : x
  2. Step 2: Convert to fraction form
    453.79/681.59 = 299.98/x
  3. Step 3: Cross multiply
    453.79x = 681.59 × 299.98
  4. Step 4: Simplify right side
    453.79x = 204,463.37
  5. Step 5: Solve for x
    x = 204,463.37/453.79
  6. Step 6: Final answer
    x = 450.57

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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.