Home / 207,904.70-311,857.05-192,158.30

Finding the Fourth Proportional to 207,904.70, 311,857.05 and 192,158.30

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Solution

The fourth proportional to 207,904.70, 311,857.05 and 192,158.30 is: 288,237.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,904.70 : 311,857.05 = 192,158.30 : x
  2. Step 2: Convert to fraction form
    207,904.70/311,857.05 = 192,158.30/x
  3. Step 3: Cross multiply
    207,904.70x = 311,857.05 × 192,158.30
  4. Step 4: Simplify right side
    207,904.70x = 59,925,920,571.02
  5. Step 5: Solve for x
    x = 59,925,920,571.02/207,904.70
  6. Step 6: Final answer
    x = 288,237.45

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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.