Home / 211,325.91-291,659.66-130,779.37

Finding the Fourth Proportional to 211,325.91, 291,659.66 and 130,779.37

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Solution

The fourth proportional to 211,325.91, 291,659.66 and 130,779.37 is: 180,494.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,325.91 : 291,659.66 = 130,779.37 : x
  2. Step 2: Convert to fraction form
    211,325.91/291,659.66 = 130,779.37/x
  3. Step 3: Cross multiply
    211,325.91x = 291,659.66 × 130,779.37
  4. Step 4: Simplify right side
    211,325.91x = 38,143,066,664.47
  5. Step 5: Solve for x
    x = 38,143,066,664.47/211,325.91
  6. Step 6: Final answer
    x = 180,494.04

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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.