Home / 211,326.05-291,659.87-130,779.59

Finding the Fourth Proportional to 211,326.05, 291,659.87 and 130,779.59

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Solution

The fourth proportional to 211,326.05, 291,659.87 and 130,779.59 is: 180,494.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,326.05 : 291,659.87 = 130,779.59 : x
  2. Step 2: Convert to fraction form
    211,326.05/291,659.87 = 130,779.59/x
  3. Step 3: Cross multiply
    211,326.05x = 291,659.87 × 130,779.59
  4. Step 4: Simplify right side
    211,326.05x = 38,143,157,086.70
  5. Step 5: Solve for x
    x = 38,143,157,086.70/211,326.05
  6. Step 6: Final answer
    x = 180,494.34

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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.