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Finding the Fourth Proportional to 326,658, 490,112.94 and 127,119.08

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Solution

The fourth proportional to 326,658, 490,112.94 and 127,119.08 is: 190,727.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,658 : 490,112.94 = 127,119.08 : x
  2. Step 2: Convert to fraction form
    326,658/490,112.94 = 127,119.08/x
  3. Step 3: Cross multiply
    326,658x = 490,112.94 × 127,119.08
  4. Step 4: Simplify right side
    326,658x = 62,302,706,028.90
  5. Step 5: Solve for x
    x = 62,302,706,028.90/326,658
  6. Step 6: Final answer
    x = 190,727.63

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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.