Home / 208,388.66-312,964.32-190,821.56

Finding the Fourth Proportional to 208,388.66, 312,964.32 and 190,821.56

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Solution

The fourth proportional to 208,388.66, 312,964.32 and 190,821.56 is: 286,581.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,388.66 : 312,964.32 = 190,821.56 : x
  2. Step 2: Convert to fraction form
    208,388.66/312,964.32 = 190,821.56/x
  3. Step 3: Cross multiply
    208,388.66x = 312,964.32 × 190,821.56
  4. Step 4: Simplify right side
    208,388.66x = 59,720,339,766.74
  5. Step 5: Solve for x
    x = 59,720,339,766.74/208,388.66
  6. Step 6: Final answer
    x = 286,581.52

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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.