Home / 275,440.62-412,275.20-142,139.33

Finding the Fourth Proportional to 275,440.62, 412,275.20 and 142,139.33

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Solution

The fourth proportional to 275,440.62, 412,275.20 and 142,139.33 is: 212,751.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,440.62 : 412,275.20 = 142,139.33 : x
  2. Step 2: Convert to fraction form
    275,440.62/412,275.20 = 142,139.33/x
  3. Step 3: Cross multiply
    275,440.62x = 412,275.20 × 142,139.33
  4. Step 4: Simplify right side
    275,440.62x = 58,600,520,703.62
  5. Step 5: Solve for x
    x = 58,600,520,703.62/275,440.62
  6. Step 6: Final answer
    x = 212,751.92

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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.