Home / 377,813.80-521,382.24-205,729.10

Finding the Fourth Proportional to 377,813.80, 521,382.24 and 205,729.10

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Solution

The fourth proportional to 377,813.80, 521,382.24 and 205,729.10 is: 283,905.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,813.80 : 521,382.24 = 205,729.10 : x
  2. Step 2: Convert to fraction form
    377,813.80/521,382.24 = 205,729.10/x
  3. Step 3: Cross multiply
    377,813.80x = 521,382.24 × 205,729.10
  4. Step 4: Simplify right side
    377,813.80x = 107,263,498,991.18
  5. Step 5: Solve for x
    x = 107,263,498,991.18/377,813.80
  6. Step 6: Final answer
    x = 283,905.72

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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.