Home / 311,905.12-467,747.28-101,503.84

Finding the Fourth Proportional to 311,905.12, 467,747.28 and 101,503.84

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Solution

The fourth proportional to 311,905.12, 467,747.28 and 101,503.84 is: 152,219.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,905.12 : 467,747.28 = 101,503.84 : x
  2. Step 2: Convert to fraction form
    311,905.12/467,747.28 = 101,503.84/x
  3. Step 3: Cross multiply
    311,905.12x = 467,747.28 × 101,503.84
  4. Step 4: Simplify right side
    311,905.12x = 47,478,145,069.56
  5. Step 5: Solve for x
    x = 47,478,145,069.56/311,905.12
  6. Step 6: Final answer
    x = 152,219.83

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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.