Home / 211,525.30-291,886.32-120,863.26

Finding the Fourth Proportional to 211,525.30, 291,886.32 and 120,863.26

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Solution

The fourth proportional to 211,525.30, 291,886.32 and 120,863.26 is: 166,780.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,525.30 : 291,886.32 = 120,863.26 : x
  2. Step 2: Convert to fraction form
    211,525.30/291,886.32 = 120,863.26/x
  3. Step 3: Cross multiply
    211,525.30x = 291,886.32 × 120,863.26
  4. Step 4: Simplify right side
    211,525.30x = 35,278,332,184.60
  5. Step 5: Solve for x
    x = 35,278,332,184.60/211,525.30
  6. Step 6: Final answer
    x = 166,780.67

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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.