Home / 209,318.28-288,883.60-117,462.86

Finding the Fourth Proportional to 209,318.28, 288,883.60 and 117,462.86

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Solution

The fourth proportional to 209,318.28, 288,883.60 and 117,462.86 is: 162,112.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,318.28 : 288,883.60 = 117,462.86 : x
  2. Step 2: Convert to fraction form
    209,318.28/288,883.60 = 117,462.86/x
  3. Step 3: Cross multiply
    209,318.28x = 288,883.60 × 117,462.86
  4. Step 4: Simplify right side
    209,318.28x = 33,933,093,863.10
  5. Step 5: Solve for x
    x = 33,933,093,863.10/209,318.28
  6. Step 6: Final answer
    x = 162,112.42

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.