Home / 311,623.68-429,834.24-192,184.32

Finding the Fourth Proportional to 311,623.68, 429,834.24 and 192,184.32

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Solution

The fourth proportional to 311,623.68, 429,834.24 and 192,184.32 is: 265,087.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,623.68 : 429,834.24 = 192,184.32 : x
  2. Step 2: Convert to fraction form
    311,623.68/429,834.24 = 192,184.32/x
  3. Step 3: Cross multiply
    311,623.68x = 429,834.24 × 192,184.32
  4. Step 4: Simplify right side
    311,623.68x = 82,607,401,127.12
  5. Step 5: Solve for x
    x = 82,607,401,127.12/311,623.68
  6. Step 6: Final answer
    x = 265,087.05

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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.