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Finding the Fourth Proportional to 381,998.34, 572,996.94 and 101,515.62

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Solution

The fourth proportional to 381,998.34, 572,996.94 and 101,515.62 is: 152,273.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,998.34 : 572,996.94 = 101,515.62 : x
  2. Step 2: Convert to fraction form
    381,998.34/572,996.94 = 101,515.62/x
  3. Step 3: Cross multiply
    381,998.34x = 572,996.94 × 101,515.62
  4. Step 4: Simplify right side
    381,998.34x = 58,168,139,622.20
  5. Step 5: Solve for x
    x = 58,168,139,622.20/381,998.34
  6. Step 6: Final answer
    x = 152,273.28

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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.