Home / 220,874.18-331,328.06-85,880.26

Finding the Fourth Proportional to 220,874.18, 331,328.06 and 85,880.26

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Solution

The fourth proportional to 220,874.18, 331,328.06 and 85,880.26 is: 128,826.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,874.18 : 331,328.06 = 85,880.26 : x
  2. Step 2: Convert to fraction form
    220,874.18/331,328.06 = 85,880.26/x
  3. Step 3: Cross multiply
    220,874.18x = 331,328.06 × 85,880.26
  4. Step 4: Simplify right side
    220,874.18x = 28,454,539,324.48
  5. Step 5: Solve for x
    x = 28,454,539,324.48/220,874.18
  6. Step 6: Final answer
    x = 128,826.91

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1.5x scale

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.