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Finding the Fourth Proportional to 302.37, 453.32 and 131.49

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Solution

The fourth proportional to 302.37, 453.32 and 131.49 is: 197.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    302.37 : 453.32 = 131.49 : x
  2. Step 2: Convert to fraction form
    302.37/453.32 = 131.49/x
  3. Step 3: Cross multiply
    302.37x = 453.32 × 131.49
  4. Step 4: Simplify right side
    302.37x = 59,606.39
  5. Step 5: Solve for x
    x = 59,606.39/302.37
  6. Step 6: Final answer
    x = 197.13

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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.