Home / 291,947.20-438,093.60-192,395.20

Finding the Fourth Proportional to 291,947.20, 438,093.60 and 192,395.20

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Solution

The fourth proportional to 291,947.20, 438,093.60 and 192,395.20 is: 288,706.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,947.20 : 438,093.60 = 192,395.20 : x
  2. Step 2: Convert to fraction form
    291,947.20/438,093.60 = 192,395.20/x
  3. Step 3: Cross multiply
    291,947.20x = 438,093.60 × 192,395.20
  4. Step 4: Simplify right side
    291,947.20x = 84,287,105,790.72
  5. Step 5: Solve for x
    x = 84,287,105,790.72/291,947.20
  6. Step 6: Final answer
    x = 288,706.68

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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.