Home / 208,386.66-312,961.32-190,819.56

Finding the Fourth Proportional to 208,386.66, 312,961.32 and 190,819.56

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Solution

The fourth proportional to 208,386.66, 312,961.32 and 190,819.56 is: 286,578.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    208,386.66 : 312,961.32 = 190,819.56 : x
  2. Step 2: Convert to fraction form
    208,386.66/312,961.32 = 190,819.56/x
  3. Step 3: Cross multiply
    208,386.66x = 312,961.32 × 190,819.56
  4. Step 4: Simplify right side
    208,386.66x = 59,719,141,379.42
  5. Step 5: Solve for x
    x = 59,719,141,379.42/208,386.66
  6. Step 6: Final answer
    x = 286,578.52

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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.