Home / 247,200.20-370,778.70-80,988.20

Finding the Fourth Proportional to 247,200.20, 370,778.70 and 80,988.20

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Solution

The fourth proportional to 247,200.20, 370,778.70 and 80,988.20 is: 121,475.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,200.20 : 370,778.70 = 80,988.20 : x
  2. Step 2: Convert to fraction form
    247,200.20/370,778.70 = 80,988.20/x
  3. Step 3: Cross multiply
    247,200.20x = 370,778.70 × 80,988.20
  4. Step 4: Simplify right side
    247,200.20x = 30,028,699,511.34
  5. Step 5: Solve for x
    x = 30,028,699,511.34/247,200.20
  6. Step 6: Final answer
    x = 121,475.22

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1.5x scale

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.