Home / 211,001.40-291,317.76-188,301.42

Finding the Fourth Proportional to 211,001.40, 291,317.76 and 188,301.42

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Solution

The fourth proportional to 211,001.40, 291,317.76 and 188,301.42 is: 259,977.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,001.40 : 291,317.76 = 188,301.42 : x
  2. Step 2: Convert to fraction form
    211,001.40/291,317.76 = 188,301.42/x
  3. Step 3: Cross multiply
    211,001.40x = 291,317.76 × 188,301.42
  4. Step 4: Simplify right side
    211,001.40x = 54,855,547,879.22
  5. Step 5: Solve for x
    x = 54,855,547,879.22/211,001.40
  6. Step 6: Final answer
    x = 259,977.17

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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.