Home / 455,076.30-682,588.92-139,532.34

Finding the Fourth Proportional to 455,076.30, 682,588.92 and 139,532.34

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Solution

The fourth proportional to 455,076.30, 682,588.92 and 139,532.34 is: 209,290.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,076.30 : 682,588.92 = 139,532.34 : x
  2. Step 2: Convert to fraction form
    455,076.30/682,588.92 = 139,532.34/x
  3. Step 3: Cross multiply
    455,076.30x = 682,588.92 × 139,532.34
  4. Step 4: Simplify right side
    455,076.30x = 95,243,229,265.67
  5. Step 5: Solve for x
    x = 95,243,229,265.67/455,076.30
  6. Step 6: Final answer
    x = 209,290.68

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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.