Home / 378,184.84-521,888.10-206,104.18

Finding the Fourth Proportional to 378,184.84, 521,888.10 and 206,104.18

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Solution

The fourth proportional to 378,184.84, 521,888.10 and 206,104.18 is: 284,419.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,184.84 : 521,888.10 = 206,104.18 : x
  2. Step 2: Convert to fraction form
    378,184.84/521,888.10 = 206,104.18/x
  3. Step 3: Cross multiply
    378,184.84x = 521,888.10 × 206,104.18
  4. Step 4: Simplify right side
    378,184.84x = 107,563,318,902.26
  5. Step 5: Solve for x
    x = 107,563,318,902.26/378,184.84
  6. Step 6: Final answer
    x = 284,419.96

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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.