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Finding the Fourth Proportional to 381,196.98, 571,073.73 and 254,455.05

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Solution

The fourth proportional to 381,196.98, 571,073.73 and 254,455.05 is: 381,200.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,196.98 : 571,073.73 = 254,455.05 : x
  2. Step 2: Convert to fraction form
    381,196.98/571,073.73 = 254,455.05/x
  3. Step 3: Cross multiply
    381,196.98x = 571,073.73 × 254,455.05
  4. Step 4: Simplify right side
    381,196.98x = 145,312,594,520.84
  5. Step 5: Solve for x
    x = 145,312,594,520.84/381,196.98
  6. Step 6: Final answer
    x = 381,200.80

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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.