Home / 211,288.20-291,448.16-172,582.26

Finding the Fourth Proportional to 211,288.20, 291,448.16 and 172,582.26

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Solution

The fourth proportional to 211,288.20, 291,448.16 and 172,582.26 is: 238,057.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,288.20 : 291,448.16 = 172,582.26 : x
  2. Step 2: Convert to fraction form
    211,288.20/291,448.16 = 172,582.26/x
  3. Step 3: Cross multiply
    211,288.20x = 291,448.16 × 172,582.26
  4. Step 4: Simplify right side
    211,288.20x = 50,298,781,262.73
  5. Step 5: Solve for x
    x = 50,298,781,262.73/211,288.20
  6. Step 6: Final answer
    x = 238,057.69

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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.