Home / 311,187.42-429,447.15-190,326.51

Finding the Fourth Proportional to 311,187.42, 429,447.15 and 190,326.51

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Solution

The fourth proportional to 311,187.42, 429,447.15 and 190,326.51 is: 262,655.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,187.42 : 429,447.15 = 190,326.51 : x
  2. Step 2: Convert to fraction form
    311,187.42/429,447.15 = 190,326.51/x
  3. Step 3: Cross multiply
    311,187.42x = 429,447.15 × 190,326.51
  4. Step 4: Simplify right side
    311,187.42x = 81,735,177,288.95
  5. Step 5: Solve for x
    x = 81,735,177,288.95/311,187.42
  6. Step 6: Final answer
    x = 262,655.79

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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.