Home / 211,326.30-291,742.56-143,704.26

Finding the Fourth Proportional to 211,326.30, 291,742.56 and 143,704.26

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Solution

The fourth proportional to 211,326.30, 291,742.56 and 143,704.26 is: 198,388.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,326.30 : 291,742.56 = 143,704.26 : x
  2. Step 2: Convert to fraction form
    211,326.30/291,742.56 = 143,704.26/x
  3. Step 3: Cross multiply
    211,326.30x = 291,742.56 × 143,704.26
  4. Step 4: Simplify right side
    211,326.30x = 41,924,648,695.31
  5. Step 5: Solve for x
    x = 41,924,648,695.31/211,326.30
  6. Step 6: Final answer
    x = 198,388.22

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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.