Home / 204,078.40-305,862.45-104,278.30

Finding the Fourth Proportional to 204,078.40, 305,862.45 and 104,278.30

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Solution

The fourth proportional to 204,078.40, 305,862.45 and 104,278.30 is: 156,287.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,078.40 : 305,862.45 = 104,278.30 : x
  2. Step 2: Convert to fraction form
    204,078.40/305,862.45 = 104,278.30/x
  3. Step 3: Cross multiply
    204,078.40x = 305,862.45 × 104,278.30
  4. Step 4: Simplify right side
    204,078.40x = 31,894,816,319.84
  5. Step 5: Solve for x
    x = 31,894,816,319.84/204,078.40
  6. Step 6: Final answer
    x = 156,287.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.