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Finding the Fourth Proportional to 371,181.40, 512,231.74 and 201,415.52

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Solution

The fourth proportional to 371,181.40, 512,231.74 and 201,415.52 is: 277,954.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,181.40 : 512,231.74 = 201,415.52 : x
  2. Step 2: Convert to fraction form
    371,181.40/512,231.74 = 201,415.52/x
  3. Step 3: Cross multiply
    371,181.40x = 512,231.74 × 201,415.52
  4. Step 4: Simplify right side
    371,181.40x = 103,171,422,272.61
  5. Step 5: Solve for x
    x = 103,171,422,272.61/371,181.40
  6. Step 6: Final answer
    x = 277,954.18

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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.