Home / 367,811.40-551,717.10-218,512.20

Finding the Fourth Proportional to 367,811.40, 551,717.10 and 218,512.20

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Solution

The fourth proportional to 367,811.40, 551,717.10 and 218,512.20 is: 327,768.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,811.40 : 551,717.10 = 218,512.20 : x
  2. Step 2: Convert to fraction form
    367,811.40/551,717.10 = 218,512.20/x
  3. Step 3: Cross multiply
    367,811.40x = 551,717.10 × 218,512.20
  4. Step 4: Simplify right side
    367,811.40x = 120,556,917,298.62
  5. Step 5: Solve for x
    x = 120,556,917,298.62/367,811.40
  6. Step 6: Final answer
    x = 327,768.30

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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.