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Finding the Fourth Proportional to 308,275.70, 462,403.12 and 108,590.87

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Solution

The fourth proportional to 308,275.70, 462,403.12 and 108,590.87 is: 162,882.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,275.70 : 462,403.12 = 108,590.87 : x
  2. Step 2: Convert to fraction form
    308,275.70/462,403.12 = 108,590.87/x
  3. Step 3: Cross multiply
    308,275.70x = 462,403.12 × 108,590.87
  4. Step 4: Simplify right side
    308,275.70x = 50,212,757,091.51
  5. Step 5: Solve for x
    x = 50,212,757,091.51/308,275.70
  6. Step 6: Final answer
    x = 162,882.63

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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.