Home / 311,039.85-429,249.06-175,120.50

Finding the Fourth Proportional to 311,039.85, 429,249.06 and 175,120.50

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Solution

The fourth proportional to 311,039.85, 429,249.06 and 175,120.50 is: 241,674.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,039.85 : 429,249.06 = 175,120.50 : x
  2. Step 2: Convert to fraction form
    311,039.85/429,249.06 = 175,120.50/x
  3. Step 3: Cross multiply
    311,039.85x = 429,249.06 × 175,120.50
  4. Step 4: Simplify right side
    311,039.85x = 75,170,310,011.73
  5. Step 5: Solve for x
    x = 75,170,310,011.73/311,039.85
  6. Step 6: Final answer
    x = 241,674.21

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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.