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Finding the Fourth Proportional to 308,676.30, 463,247.72 and 131,308.17

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Solution

The fourth proportional to 308,676.30, 463,247.72 and 131,308.17 is: 197,061.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,676.30 : 463,247.72 = 131,308.17 : x
  2. Step 2: Convert to fraction form
    308,676.30/463,247.72 = 131,308.17/x
  3. Step 3: Cross multiply
    308,676.30x = 463,247.72 × 131,308.17
  4. Step 4: Simplify right side
    308,676.30x = 60,828,210,369.87
  5. Step 5: Solve for x
    x = 60,828,210,369.87/308,676.30
  6. Step 6: Final answer
    x = 197,061.49

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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.