Home / 211,152.72-291,380.40-115,659.84

Finding the Fourth Proportional to 211,152.72, 291,380.40 and 115,659.84

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Solution

The fourth proportional to 211,152.72, 291,380.40 and 115,659.84 is: 159,604.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,152.72 : 291,380.40 = 115,659.84 : x
  2. Step 2: Convert to fraction form
    211,152.72/291,380.40 = 115,659.84/x
  3. Step 3: Cross multiply
    211,152.72x = 291,380.40 × 115,659.84
  4. Step 4: Simplify right side
    211,152.72x = 33,701,010,443.14
  5. Step 5: Solve for x
    x = 33,701,010,443.14/211,152.72
  6. Step 6: Final answer
    x = 159,604.91

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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.