Home / 455,200.20-682,800.30-139,616.10

Finding the Fourth Proportional to 455,200.20, 682,800.30 and 139,616.10

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Solution

The fourth proportional to 455,200.20, 682,800.30 and 139,616.10 is: 209,424.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,200.20 : 682,800.30 = 139,616.10 : x
  2. Step 2: Convert to fraction form
    455,200.20/682,800.30 = 139,616.10/x
  3. Step 3: Cross multiply
    455,200.20x = 682,800.30 × 139,616.10
  4. Step 4: Simplify right side
    455,200.20x = 95,329,914,964.83
  5. Step 5: Solve for x
    x = 95,329,914,964.83/455,200.20
  6. Step 6: Final answer
    x = 209,424.15

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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.