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Finding the Fourth Proportional to 360,395.80, 540,862.98 and 135,977.56

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Solution

The fourth proportional to 360,395.80, 540,862.98 and 135,977.56 is: 204,067.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,395.80 : 540,862.98 = 135,977.56 : x
  2. Step 2: Convert to fraction form
    360,395.80/540,862.98 = 135,977.56/x
  3. Step 3: Cross multiply
    360,395.80x = 540,862.98 × 135,977.56
  4. Step 4: Simplify right side
    360,395.80x = 73,545,228,314.73
  5. Step 5: Solve for x
    x = 73,545,228,314.73/360,395.80
  6. Step 6: Final answer
    x = 204,067.94

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1.5x scale

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.