Home / 198,208.38-273,438.27-117,639.30

Finding the Fourth Proportional to 198,208.38, 273,438.27 and 117,639.30

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Solution

The fourth proportional to 198,208.38, 273,438.27 and 117,639.30 is: 162,289.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,208.38 : 273,438.27 = 117,639.30 : x
  2. Step 2: Convert to fraction form
    198,208.38/273,438.27 = 117,639.30/x
  3. Step 3: Cross multiply
    198,208.38x = 273,438.27 × 117,639.30
  4. Step 4: Simplify right side
    198,208.38x = 32,167,086,676.01
  5. Step 5: Solve for x
    x = 32,167,086,676.01/198,208.38
  6. Step 6: Final answer
    x = 162,289.24

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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.