Home / 221,511.10-305,578.86-144,996.49

Finding the Fourth Proportional to 221,511.10, 305,578.86 and 144,996.49

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Solution

The fourth proportional to 221,511.10, 305,578.86 and 144,996.49 is: 200,025.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,511.10 : 305,578.86 = 144,996.49 : x
  2. Step 2: Convert to fraction form
    221,511.10/305,578.86 = 144,996.49/x
  3. Step 3: Cross multiply
    221,511.10x = 305,578.86 × 144,996.49
  4. Step 4: Simplify right side
    221,511.10x = 44,307,862,118.20
  5. Step 5: Solve for x
    x = 44,307,862,118.20/221,511.10
  6. Step 6: Final answer
    x = 200,025.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.