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Finding the Fourth Proportional to 311,131.66, 429,328.81 and 175,163.13

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Solution

The fourth proportional to 311,131.66, 429,328.81 and 175,163.13 is: 241,706.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,131.66 : 429,328.81 = 175,163.13 : x
  2. Step 2: Convert to fraction form
    311,131.66/429,328.81 = 175,163.13/x
  3. Step 3: Cross multiply
    311,131.66x = 429,328.81 × 175,163.13
  4. Step 4: Simplify right side
    311,131.66x = 75,202,578,158.78
  5. Step 5: Solve for x
    x = 75,202,578,158.78/311,131.66
  6. Step 6: Final answer
    x = 241,706.61

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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.