Home / 378,152.94-521,844.30-206,072.40

Finding the Fourth Proportional to 378,152.94, 521,844.30 and 206,072.40

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Solution

The fourth proportional to 378,152.94, 521,844.30 and 206,072.40 is: 284,376.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,152.94 : 521,844.30 = 206,072.40 : x
  2. Step 2: Convert to fraction form
    378,152.94/521,844.30 = 206,072.40/x
  3. Step 3: Cross multiply
    378,152.94x = 521,844.30 × 206,072.40
  4. Step 4: Simplify right side
    378,152.94x = 107,537,707,327.32
  5. Step 5: Solve for x
    x = 107,537,707,327.32/378,152.94
  6. Step 6: Final answer
    x = 284,376.23

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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.