Home / 209,708.19-314,299.64-165,159

Finding the Fourth Proportional to 209,708.19, 314,299.64 and 165,159

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Solution

The fourth proportional to 209,708.19, 314,299.64 and 165,159 is: 247,531.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,708.19 : 314,299.64 = 165,159 : x
  2. Step 2: Convert to fraction form
    209,708.19/314,299.64 = 165,159/x
  3. Step 3: Cross multiply
    209,708.19x = 314,299.64 × 165,159
  4. Step 4: Simplify right side
    209,708.19x = 51,909,414,655.66
  5. Step 5: Solve for x
    x = 51,909,414,655.66/209,708.19
  6. Step 6: Final answer
    x = 247,531.65

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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.