Home / 320,210.85-480,326.00-109,845.75

Finding the Fourth Proportional to 320,210.85, 480,326.00 and 109,845.75

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Solution

The fourth proportional to 320,210.85, 480,326.00 and 109,845.75 is: 164,771.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,210.85 : 480,326.00 = 109,845.75 : x
  2. Step 2: Convert to fraction form
    320,210.85/480,326.00 = 109,845.75/x
  3. Step 3: Cross multiply
    320,210.85x = 480,326.00 × 109,845.75
  4. Step 4: Simplify right side
    320,210.85x = 52,761,769,165.27
  5. Step 5: Solve for x
    x = 52,761,769,165.27/320,210.85
  6. Step 6: Final answer
    x = 164,771.96

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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.