Home / 215,735.50-297,725.18-120,242.88

Finding the Fourth Proportional to 215,735.50, 297,725.18 and 120,242.88

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Solution

The fourth proportional to 215,735.50, 297,725.18 and 120,242.88 is: 165,940.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,735.50 : 297,725.18 = 120,242.88 : x
  2. Step 2: Convert to fraction form
    215,735.50/297,725.18 = 120,242.88/x
  3. Step 3: Cross multiply
    215,735.50x = 297,725.18 × 120,242.88
  4. Step 4: Simplify right side
    215,735.50x = 35,799,333,091.72
  5. Step 5: Solve for x
    x = 35,799,333,091.72/215,735.50
  6. Step 6: Final answer
    x = 165,940.85

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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.