Home / 220,719.15-331,000.83-70,908.84

Finding the Fourth Proportional to 220,719.15, 331,000.83 and 70,908.84

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Solution

The fourth proportional to 220,719.15, 331,000.83 and 70,908.84 is: 106,338.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,719.15 : 331,000.83 = 70,908.84 : x
  2. Step 2: Convert to fraction form
    220,719.15/331,000.83 = 70,908.84/x
  3. Step 3: Cross multiply
    220,719.15x = 331,000.83 × 70,908.84
  4. Step 4: Simplify right side
    220,719.15x = 23,470,884,894.34
  5. Step 5: Solve for x
    x = 23,470,884,894.34/220,719.15
  6. Step 6: Final answer
    x = 106,338.24

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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.