Home / 291,215.09-401,810.33-163,844.21

Finding the Fourth Proportional to 291,215.09, 401,810.33 and 163,844.21

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Solution

The fourth proportional to 291,215.09, 401,810.33 and 163,844.21 is: 226,067.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,215.09 : 401,810.33 = 163,844.21 : x
  2. Step 2: Convert to fraction form
    291,215.09/401,810.33 = 163,844.21/x
  3. Step 3: Cross multiply
    291,215.09x = 401,810.33 × 163,844.21
  4. Step 4: Simplify right side
    291,215.09x = 65,834,296,088.69
  5. Step 5: Solve for x
    x = 65,834,296,088.69/291,215.09
  6. Step 6: Final answer
    x = 226,067.60

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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.