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Finding the Fourth Proportional to 210,860.52, 290,958.78 and 125,959.56

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Solution

The fourth proportional to 210,860.52, 290,958.78 and 125,959.56 is: 173,807.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,860.52 : 290,958.78 = 125,959.56 : x
  2. Step 2: Convert to fraction form
    210,860.52/290,958.78 = 125,959.56/x
  3. Step 3: Cross multiply
    210,860.52x = 290,958.78 × 125,959.56
  4. Step 4: Simplify right side
    210,860.52x = 36,649,039,906.94
  5. Step 5: Solve for x
    x = 36,649,039,906.94/210,860.52
  6. Step 6: Final answer
    x = 173,807.03

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1.5x scale

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.