Home / 454,790.80-682,186.20-139,206.70

Finding the Fourth Proportional to 454,790.80, 682,186.20 and 139,206.70

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Solution

The fourth proportional to 454,790.80, 682,186.20 and 139,206.70 is: 208,810.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    454,790.80 : 682,186.20 = 139,206.70 : x
  2. Step 2: Convert to fraction form
    454,790.80/682,186.20 = 139,206.70/x
  3. Step 3: Cross multiply
    454,790.80x = 682,186.20 × 139,206.70
  4. Step 4: Simplify right side
    454,790.80x = 94,964,889,687.54
  5. Step 5: Solve for x
    x = 94,964,889,687.54/454,790.80
  6. Step 6: Final answer
    x = 208,810.05

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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.