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Finding the Fourth Proportional to 308,419.62, 462,678.42 and 108,801.06

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Solution

The fourth proportional to 308,419.62, 462,678.42 and 108,801.06 is: 163,218.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,419.62 : 462,678.42 = 108,801.06 : x
  2. Step 2: Convert to fraction form
    308,419.62/462,678.42 = 108,801.06/x
  3. Step 3: Cross multiply
    308,419.62x = 462,678.42 × 108,801.06
  4. Step 4: Simplify right side
    308,419.62x = 50,339,902,535.13
  5. Step 5: Solve for x
    x = 50,339,902,535.13/308,419.62
  6. Step 6: Final answer
    x = 163,218.87

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1.5x scale

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.