Home / 455,118.32-682,651.92-139,574.36

Finding the Fourth Proportional to 455,118.32, 682,651.92 and 139,574.36

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Solution

The fourth proportional to 455,118.32, 682,651.92 and 139,574.36 is: 209,353.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,118.32 : 682,651.92 = 139,574.36 : x
  2. Step 2: Convert to fraction form
    455,118.32/682,651.92 = 139,574.36/x
  3. Step 3: Cross multiply
    455,118.32x = 682,651.92 × 139,574.36
  4. Step 4: Simplify right side
    455,118.32x = 95,280,704,836.77
  5. Step 5: Solve for x
    x = 95,280,704,836.77/455,118.32
  6. Step 6: Final answer
    x = 209,353.70

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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.