Home / 290,733.80-400,972.56-204,978.56

Finding the Fourth Proportional to 290,733.80, 400,972.56 and 204,978.56

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Solution

The fourth proportional to 290,733.80, 400,972.56 and 204,978.56 is: 282,701.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,733.80 : 400,972.56 = 204,978.56 : x
  2. Step 2: Convert to fraction form
    290,733.80/400,972.56 = 204,978.56/x
  3. Step 3: Cross multiply
    290,733.80x = 400,972.56 × 204,978.56
  4. Step 4: Simplify right side
    290,733.80x = 82,190,777,948.31
  5. Step 5: Solve for x
    x = 82,190,777,948.31/290,733.80
  6. Step 6: Final answer
    x = 282,701.14

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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.