Home / 313,947.40-470,772.70-114,128.52

Finding the Fourth Proportional to 313,947.40, 470,772.70 and 114,128.52

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Solution

The fourth proportional to 313,947.40, 470,772.70 and 114,128.52 is: 171,138.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,947.40 : 470,772.70 = 114,128.52 : x
  2. Step 2: Convert to fraction form
    313,947.40/470,772.70 = 114,128.52/x
  3. Step 3: Cross multiply
    313,947.40x = 470,772.70 × 114,128.52
  4. Step 4: Simplify right side
    313,947.40x = 53,728,591,507.40
  5. Step 5: Solve for x
    x = 53,728,591,507.40/313,947.40
  6. Step 6: Final answer
    x = 171,138.83

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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.