Home / 211,398.46-316,675.21-127,112.48

Finding the Fourth Proportional to 211,398.46, 316,675.21 and 127,112.48

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Solution

The fourth proportional to 211,398.46, 316,675.21 and 127,112.48 is: 190,414.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,398.46 : 316,675.21 = 127,112.48 : x
  2. Step 2: Convert to fraction form
    211,398.46/316,675.21 = 127,112.48/x
  3. Step 3: Cross multiply
    211,398.46x = 316,675.21 × 127,112.48
  4. Step 4: Simplify right side
    211,398.46x = 40,253,371,297.62
  5. Step 5: Solve for x
    x = 40,253,371,297.62/211,398.46
  6. Step 6: Final answer
    x = 190,414.69

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.