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Finding the Fourth Proportional to 200,356.52, 300,057.75 and 115,938.81

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Solution

The fourth proportional to 200,356.52, 300,057.75 and 115,938.81 is: 173,632.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,356.52 : 300,057.75 = 115,938.81 : x
  2. Step 2: Convert to fraction form
    200,356.52/300,057.75 = 115,938.81/x
  3. Step 3: Cross multiply
    200,356.52x = 300,057.75 × 115,938.81
  4. Step 4: Simplify right side
    200,356.52x = 34,788,338,466.28
  5. Step 5: Solve for x
    x = 34,788,338,466.28/200,356.52
  6. Step 6: Final answer
    x = 173,632.18

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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.