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Finding the Fourth Proportional to 351,880.49, 485,582.07 and 190,732.08

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Solution

The fourth proportional to 351,880.49, 485,582.07 and 190,732.08 is: 263,203.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,880.49 : 485,582.07 = 190,732.08 : x
  2. Step 2: Convert to fraction form
    351,880.49/485,582.07 = 190,732.08/x
  3. Step 3: Cross multiply
    351,880.49x = 485,582.07 × 190,732.08
  4. Step 4: Simplify right side
    351,880.49x = 92,616,078,221.81
  5. Step 5: Solve for x
    x = 92,616,078,221.81/351,880.49
  6. Step 6: Final answer
    x = 263,203.22

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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.