Home / 313,550.12-470,334.10-76,892.60

Finding the Fourth Proportional to 313,550.12, 470,334.10 and 76,892.60

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Solution

The fourth proportional to 313,550.12, 470,334.10 and 76,892.60 is: 115,341.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,550.12 : 470,334.10 = 76,892.60 : x
  2. Step 2: Convert to fraction form
    313,550.12/470,334.10 = 76,892.60/x
  3. Step 3: Cross multiply
    313,550.12x = 470,334.10 × 76,892.60
  4. Step 4: Simplify right side
    313,550.12x = 36,165,211,817.66
  5. Step 5: Solve for x
    x = 36,165,211,817.66/313,550.12
  6. Step 6: Final answer
    x = 115,341.09

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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.