Home / 455,004.21-682,506.43-139,461.12

Finding the Fourth Proportional to 455,004.21, 682,506.43 and 139,461.12

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Solution

The fourth proportional to 455,004.21, 682,506.43 and 139,461.12 is: 209,191.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,004.21 : 682,506.43 = 139,461.12 : x
  2. Step 2: Convert to fraction form
    455,004.21/682,506.43 = 139,461.12/x
  3. Step 3: Cross multiply
    455,004.21x = 682,506.43 × 139,461.12
  4. Step 4: Simplify right side
    455,004.21x = 95,183,109,259.03
  5. Step 5: Solve for x
    x = 95,183,109,259.03/455,004.21
  6. Step 6: Final answer
    x = 209,191.71

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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.