Home / 381,984.70-572,558.55-192,142.30

Finding the Fourth Proportional to 381,984.70, 572,558.55 and 192,142.30

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Solution

The fourth proportional to 381,984.70, 572,558.55 and 192,142.30 is: 288,002.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,984.70 : 572,558.55 = 192,142.30 : x
  2. Step 2: Convert to fraction form
    381,984.70/572,558.55 = 192,142.30/x
  3. Step 3: Cross multiply
    381,984.70x = 572,558.55 × 192,142.30
  4. Step 4: Simplify right side
    381,984.70x = 110,012,716,681.67
  5. Step 5: Solve for x
    x = 110,012,716,681.67/381,984.70
  6. Step 6: Final answer
    x = 288,002.94

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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.