Home / 217,589.29-300,258.19-120,785.58

Finding the Fourth Proportional to 217,589.29, 300,258.19 and 120,785.58

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Solution

The fourth proportional to 217,589.29, 300,258.19 and 120,785.58 is: 166,675.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,589.29 : 300,258.19 = 120,785.58 : x
  2. Step 2: Convert to fraction form
    217,589.29/300,258.19 = 120,785.58/x
  3. Step 3: Cross multiply
    217,589.29x = 300,258.19 × 120,785.58
  4. Step 4: Simplify right side
    217,589.29x = 36,266,859,779.88
  5. Step 5: Solve for x
    x = 36,266,859,779.88/217,589.29
  6. Step 6: Final answer
    x = 166,675.76

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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.