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Finding the Fourth Proportional to 313,910.20, 470,250.90 and 188,879.80

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Solution

The fourth proportional to 313,910.20, 470,250.90 and 188,879.80 is: 282,950.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,910.20 : 470,250.90 = 188,879.80 : x
  2. Step 2: Convert to fraction form
    313,910.20/470,250.90 = 188,879.80/x
  3. Step 3: Cross multiply
    313,910.20x = 470,250.90 × 188,879.80
  4. Step 4: Simplify right side
    313,910.20x = 88,820,895,941.82
  5. Step 5: Solve for x
    x = 88,820,895,941.82/313,910.20
  6. Step 6: Final answer
    x = 282,950.02

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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.