Home / 211,336.25-291,673.86-130,789.72

Finding the Fourth Proportional to 211,336.25, 291,673.86 and 130,789.72

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Solution

The fourth proportional to 211,336.25, 291,673.86 and 130,789.72 is: 180,508.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,336.25 : 291,673.86 = 130,789.72 : x
  2. Step 2: Convert to fraction form
    211,336.25/291,673.86 = 130,789.72/x
  3. Step 3: Cross multiply
    211,336.25x = 291,673.86 × 130,789.72
  4. Step 4: Simplify right side
    211,336.25x = 38,147,941,022.35
  5. Step 5: Solve for x
    x = 38,147,941,022.35/211,336.25
  6. Step 6: Final answer
    x = 180,508.27

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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.