Home / 263,139.20-394,417.20-144,895.40

Finding the Fourth Proportional to 263,139.20, 394,417.20 and 144,895.40

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Solution

The fourth proportional to 263,139.20, 394,417.20 and 144,895.40 is: 217,182.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,139.20 : 394,417.20 = 144,895.40 : x
  2. Step 2: Convert to fraction form
    263,139.20/394,417.20 = 144,895.40/x
  3. Step 3: Cross multiply
    263,139.20x = 394,417.20 × 144,895.40
  4. Step 4: Simplify right side
    263,139.20x = 57,149,237,960.88
  5. Step 5: Solve for x
    x = 57,149,237,960.88/263,139.20
  6. Step 6: Final answer
    x = 217,182.53

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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.