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Finding the Fourth Proportional to 453.86, 679.83 and 376.64

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Solution

The fourth proportional to 453.86, 679.83 and 376.64 is: 564.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    453.86 : 679.83 = 376.64 : x
  2. Step 2: Convert to fraction form
    453.86/679.83 = 376.64/x
  3. Step 3: Cross multiply
    453.86x = 679.83 × 376.64
  4. Step 4: Simplify right side
    453.86x = 256,051.17
  5. Step 5: Solve for x
    x = 256,051.17/453.86
  6. Step 6: Final answer
    x = 564.16

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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.