Home / 303,845.90-419,317.71-190,731.02

Finding the Fourth Proportional to 303,845.90, 419,317.71 and 190,731.02

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Solution

The fourth proportional to 303,845.90, 419,317.71 and 190,731.02 is: 263,215.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,845.90 : 419,317.71 = 190,731.02 : x
  2. Step 2: Convert to fraction form
    303,845.90/419,317.71 = 190,731.02/x
  3. Step 3: Cross multiply
    303,845.90x = 419,317.71 × 190,731.02
  4. Step 4: Simplify right side
    303,845.90x = 79,976,894,532.36
  5. Step 5: Solve for x
    x = 79,976,894,532.36/303,845.90
  6. Step 6: Final answer
    x = 263,215.32

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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.