Home / 215,957.50-298,021.62-120,470.29

Finding the Fourth Proportional to 215,957.50, 298,021.62 and 120,470.29

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Solution

The fourth proportional to 215,957.50, 298,021.62 and 120,470.29 is: 166,249.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,957.50 : 298,021.62 = 120,470.29 : x
  2. Step 2: Convert to fraction form
    215,957.50/298,021.62 = 120,470.29/x
  3. Step 3: Cross multiply
    215,957.50x = 298,021.62 × 120,470.29
  4. Step 4: Simplify right side
    215,957.50x = 35,902,750,987.67
  5. Step 5: Solve for x
    x = 35,902,750,987.67/215,957.50
  6. Step 6: Final answer
    x = 166,249.15

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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.