Home / 377,947.76-521,568.64-205,865.20

Finding the Fourth Proportional to 377,947.76, 521,568.64 and 205,865.20

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Solution

The fourth proportional to 377,947.76, 521,568.64 and 205,865.20 is: 284,094.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,947.76 : 521,568.64 = 205,865.20 : x
  2. Step 2: Convert to fraction form
    377,947.76/521,568.64 = 205,865.20/x
  3. Step 3: Cross multiply
    377,947.76x = 521,568.64 × 205,865.20
  4. Step 4: Simplify right side
    377,947.76x = 107,372,832,387.33
  5. Step 5: Solve for x
    x = 107,372,832,387.33/377,947.76
  6. Step 6: Final answer
    x = 284,094.37

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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.