Home / 207,868.20-311,802.30-144,882.60

Finding the Fourth Proportional to 207,868.20, 311,802.30 and 144,882.60

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Solution

The fourth proportional to 207,868.20, 311,802.30 and 144,882.60 is: 217,323.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,868.20 : 311,802.30 = 144,882.60 : x
  2. Step 2: Convert to fraction form
    207,868.20/311,802.30 = 144,882.60/x
  3. Step 3: Cross multiply
    207,868.20x = 311,802.30 × 144,882.60
  4. Step 4: Simplify right side
    207,868.20x = 45,174,727,909.98
  5. Step 5: Solve for x
    x = 45,174,727,909.98/207,868.20
  6. Step 6: Final answer
    x = 217,323.90

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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.