Home / 455,087.26-682,702.17-139,511.26

Finding the Fourth Proportional to 455,087.26, 682,702.17 and 139,511.26

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Solution

The fourth proportional to 455,087.26, 682,702.17 and 139,511.26 is: 209,288.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,087.26 : 682,702.17 = 139,511.26 : x
  2. Step 2: Convert to fraction form
    455,087.26/682,702.17 = 139,511.26/x
  3. Step 3: Cross multiply
    455,087.26x = 682,702.17 × 139,511.26
  4. Step 4: Simplify right side
    455,087.26x = 95,244,639,941.43
  5. Step 5: Solve for x
    x = 95,244,639,941.43/455,087.26
  6. Step 6: Final answer
    x = 209,288.74

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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.