Home / 262,947.60-394,137-105,002.40

Finding the Fourth Proportional to 262,947.60, 394,137 and 105,002.40

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Solution

The fourth proportional to 262,947.60, 394,137 and 105,002.40 is: 157,390.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,947.60 : 394,137 = 105,002.40 : x
  2. Step 2: Convert to fraction form
    262,947.60/394,137 = 105,002.40/x
  3. Step 3: Cross multiply
    262,947.60x = 394,137 × 105,002.40
  4. Step 4: Simplify right side
    262,947.60x = 41,385,330,928.80
  5. Step 5: Solve for x
    x = 41,385,330,928.80/262,947.60
  6. Step 6: Final answer
    x = 157,390.03

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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.