Home / 211,187.23-291,459.30-120,556.82

Finding the Fourth Proportional to 211,187.23, 291,459.30 and 120,556.82

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Solution

The fourth proportional to 211,187.23, 291,459.30 and 120,556.82 is: 166,380.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,187.23 : 291,459.30 = 120,556.82 : x
  2. Step 2: Convert to fraction form
    211,187.23/291,459.30 = 120,556.82/x
  3. Step 3: Cross multiply
    211,187.23x = 291,459.30 × 120,556.82
  4. Step 4: Simplify right side
    211,187.23x = 35,137,406,367.43
  5. Step 5: Solve for x
    x = 35,137,406,367.43/211,187.23
  6. Step 6: Final answer
    x = 166,380.36

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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.