Home / 211,014.40-291,335.84-188,314.56

Finding the Fourth Proportional to 211,014.40, 291,335.84 and 188,314.56

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Solution

The fourth proportional to 211,014.40, 291,335.84 and 188,314.56 is: 259,995.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,014.40 : 291,335.84 = 188,314.56 : x
  2. Step 2: Convert to fraction form
    211,014.40/291,335.84 = 188,314.56/x
  3. Step 3: Cross multiply
    211,014.40x = 291,335.84 × 188,314.56
  4. Step 4: Simplify right side
    211,014.40x = 54,862,780,521.83
  5. Step 5: Solve for x
    x = 54,862,780,521.83/211,014.40
  6. Step 6: Final answer
    x = 259,995.43

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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.