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Finding the Fourth Proportional to 308,189.46, 425,269.77 and 211,476.27

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Solution

The fourth proportional to 308,189.46, 425,269.77 and 211,476.27 is: 291,815.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,189.46 : 425,269.77 = 211,476.27 : x
  2. Step 2: Convert to fraction form
    308,189.46/425,269.77 = 211,476.27/x
  3. Step 3: Cross multiply
    308,189.46x = 425,269.77 × 211,476.27
  4. Step 4: Simplify right side
    308,189.46x = 89,934,464,703.36
  5. Step 5: Solve for x
    x = 89,934,464,703.36/308,189.46
  6. Step 6: Final answer
    x = 291,815.51

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.