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Finding the Fourth Proportional to 380,170.26, 570,363.12 and 190,401.44

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Solution

The fourth proportional to 380,170.26, 570,363.12 and 190,401.44 is: 285,656.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,170.26 : 570,363.12 = 190,401.44 : x
  2. Step 2: Convert to fraction form
    380,170.26/570,363.12 = 190,401.44/x
  3. Step 3: Cross multiply
    380,170.26x = 570,363.12 × 190,401.44
  4. Step 4: Simplify right side
    380,170.26x = 108,597,956,519.08
  5. Step 5: Solve for x
    x = 108,597,956,519.08/380,170.26
  6. Step 6: Final answer
    x = 285,656.11

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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.