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Finding the Fourth Proportional to 311,998.40, 467,306.40 and 124,913.60

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Solution

The fourth proportional to 311,998.40, 467,306.40 and 124,913.60 is: 187,093.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,998.40 : 467,306.40 = 124,913.60 : x
  2. Step 2: Convert to fraction form
    311,998.40/467,306.40 = 124,913.60/x
  3. Step 3: Cross multiply
    311,998.40x = 467,306.40 × 124,913.60
  4. Step 4: Simplify right side
    311,998.40x = 58,372,924,727.04
  5. Step 5: Solve for x
    x = 58,372,924,727.04/311,998.40
  6. Step 6: Final answer
    x = 187,093.67

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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.