Home / 215,951.34-298,019.16-120,455.97

Finding the Fourth Proportional to 215,951.34, 298,019.16 and 120,455.97

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Solution

The fourth proportional to 215,951.34, 298,019.16 and 120,455.97 is: 166,232.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,951.34 : 298,019.16 = 120,455.97 : x
  2. Step 2: Convert to fraction form
    215,951.34/298,019.16 = 120,455.97/x
  3. Step 3: Cross multiply
    215,951.34x = 298,019.16 × 120,455.97
  4. Step 4: Simplify right side
    215,951.34x = 35,898,186,996.39
  5. Step 5: Solve for x
    x = 35,898,186,996.39/215,951.34
  6. Step 6: Final answer
    x = 166,232.76

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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.