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Finding the Fourth Proportional to 308,301.30, 462,171.66 and 118,640.72

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Solution

The fourth proportional to 308,301.30, 462,171.66 and 118,640.72 is: 177,853.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,301.30 : 462,171.66 = 118,640.72 : x
  2. Step 2: Convert to fraction form
    308,301.30/462,171.66 = 118,640.72/x
  3. Step 3: Cross multiply
    308,301.30x = 462,171.66 × 118,640.72
  4. Step 4: Simplify right side
    308,301.30x = 54,832,376,195.14
  5. Step 5: Solve for x
    x = 54,832,376,195.14/308,301.30
  6. Step 6: Final answer
    x = 177,853.21

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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.