Home / 215,217.80-322,826.70-136,680.20

Finding the Fourth Proportional to 215,217.80, 322,826.70 and 136,680.20

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Solution

The fourth proportional to 215,217.80, 322,826.70 and 136,680.20 is: 205,020.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,217.80 : 322,826.70 = 136,680.20 : x
  2. Step 2: Convert to fraction form
    215,217.80/322,826.70 = 136,680.20/x
  3. Step 3: Cross multiply
    215,217.80x = 322,826.70 × 136,680.20
  4. Step 4: Simplify right side
    215,217.80x = 44,124,017,921.34
  5. Step 5: Solve for x
    x = 44,124,017,921.34/215,217.80
  6. Step 6: Final answer
    x = 205,020.30

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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.