Home / 377,775.12-521,336.16-205,698

Finding the Fourth Proportional to 377,775.12, 521,336.16 and 205,698

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Solution

The fourth proportional to 377,775.12, 521,336.16 and 205,698 is: 283,866.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,775.12 : 521,336.16 = 205,698 : x
  2. Step 2: Convert to fraction form
    377,775.12/521,336.16 = 205,698/x
  3. Step 3: Cross multiply
    377,775.12x = 521,336.16 × 205,698
  4. Step 4: Simplify right side
    377,775.12x = 107,237,805,439.68
  5. Step 5: Solve for x
    x = 107,237,805,439.68/377,775.12
  6. Step 6: Final answer
    x = 283,866.78

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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.