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Finding the Fourth Proportional to 302.56, 453.50 and 119.86

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Solution

The fourth proportional to 302.56, 453.50 and 119.86 is: 179.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    302.56 : 453.50 = 119.86 : x
  2. Step 2: Convert to fraction form
    302.56/453.50 = 119.86/x
  3. Step 3: Cross multiply
    302.56x = 453.50 × 119.86
  4. Step 4: Simplify right side
    302.56x = 54,356.51
  5. Step 5: Solve for x
    x = 54,356.51/302.56
  6. Step 6: Final answer
    x = 179.66

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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.