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Finding the Fourth Proportional to 377,674.68, 521,171.82 and 207,876.12

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Solution

The fourth proportional to 377,674.68, 521,171.82 and 207,876.12 is: 286,858.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,674.68 : 521,171.82 = 207,876.12 : x
  2. Step 2: Convert to fraction form
    377,674.68/521,171.82 = 207,876.12/x
  3. Step 3: Cross multiply
    377,674.68x = 521,171.82 × 207,876.12
  4. Step 4: Simplify right side
    377,674.68x = 108,339,175,794.94
  5. Step 5: Solve for x
    x = 108,339,175,794.94/377,674.68
  6. Step 6: Final answer
    x = 286,858.46

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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.