Home / 311,936.20-468,066.30-145,724.20

Finding the Fourth Proportional to 311,936.20, 468,066.30 and 145,724.20

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Solution

The fourth proportional to 311,936.20, 468,066.30 and 145,724.20 is: 218,661.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,936.20 : 468,066.30 = 145,724.20 : x
  2. Step 2: Convert to fraction form
    311,936.20/468,066.30 = 145,724.20/x
  3. Step 3: Cross multiply
    311,936.20x = 468,066.30 × 145,724.20
  4. Step 4: Simplify right side
    311,936.20x = 68,208,587,114.46
  5. Step 5: Solve for x
    x = 68,208,587,114.46/311,936.20
  6. Step 6: Final answer
    x = 218,661.98

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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.