Home / 377,650.49-521,164.31-205,573.40

Finding the Fourth Proportional to 377,650.49, 521,164.31 and 205,573.40

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Solution

The fourth proportional to 377,650.49, 521,164.31 and 205,573.40 is: 283,694.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,650.49 : 521,164.31 = 205,573.40 : x
  2. Step 2: Convert to fraction form
    377,650.49/521,164.31 = 205,573.40/x
  3. Step 3: Cross multiply
    377,650.49x = 521,164.31 × 205,573.40
  4. Step 4: Simplify right side
    377,650.49x = 107,137,517,073.47
  5. Step 5: Solve for x
    x = 107,137,517,073.47/377,650.49
  6. Step 6: Final answer
    x = 283,694.90

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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.