Home / 455,081.28-682,596.40-139,537.32

Finding the Fourth Proportional to 455,081.28, 682,596.40 and 139,537.32

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Solution

The fourth proportional to 455,081.28, 682,596.40 and 139,537.32 is: 209,298.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,081.28 : 682,596.40 = 139,537.32 : x
  2. Step 2: Convert to fraction form
    455,081.28/682,596.40 = 139,537.32/x
  3. Step 3: Cross multiply
    455,081.28x = 682,596.40 × 139,537.32
  4. Step 4: Simplify right side
    455,081.28x = 95,247,672,297.65
  5. Step 5: Solve for x
    x = 95,247,672,297.65/455,081.28
  6. Step 6: Final answer
    x = 209,298.16

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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.