Home / 211,400.28-291,691.32-125,343.36

Finding the Fourth Proportional to 211,400.28, 291,691.32 and 125,343.36

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Solution

The fourth proportional to 211,400.28, 291,691.32 and 125,343.36 is: 172,949.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,400.28 : 291,691.32 = 125,343.36 : x
  2. Step 2: Convert to fraction form
    211,400.28/291,691.32 = 125,343.36/x
  3. Step 3: Cross multiply
    211,400.28x = 291,691.32 × 125,343.36
  4. Step 4: Simplify right side
    211,400.28x = 36,561,570,131.64
  5. Step 5: Solve for x
    x = 36,561,570,131.64/211,400.28
  6. Step 6: Final answer
    x = 172,949.49

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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.