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Finding the Fourth Proportional to 131.51, 197.10 and 63.02

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Solution

The fourth proportional to 131.51, 197.10 and 63.02 is: 94.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    131.51 : 197.10 = 63.02 : x
  2. Step 2: Convert to fraction form
    131.51/197.10 = 63.02/x
  3. Step 3: Cross multiply
    131.51x = 197.10 × 63.02
  4. Step 4: Simplify right side
    131.51x = 12,421.24
  5. Step 5: Solve for x
    x = 12,421.24/131.51
  6. Step 6: Final answer
    x = 94.45

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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.