Home / 221,270.32-305,401.39-140,682.10

Finding the Fourth Proportional to 221,270.32, 305,401.39 and 140,682.10

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Solution

The fourth proportional to 221,270.32, 305,401.39 and 140,682.10 is: 194,172.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,270.32 : 305,401.39 = 140,682.10 : x
  2. Step 2: Convert to fraction form
    221,270.32/305,401.39 = 140,682.10/x
  3. Step 3: Cross multiply
    221,270.32x = 305,401.39 × 140,682.10
  4. Step 4: Simplify right side
    221,270.32x = 42,964,508,888.12
  5. Step 5: Solve for x
    x = 42,964,508,888.12/221,270.32
  6. Step 6: Final answer
    x = 194,172.04

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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.