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Finding the Fourth Proportional to 371,181.27, 512,231.56 and 201,415.40

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Solution

The fourth proportional to 371,181.27, 512,231.56 and 201,415.40 is: 277,954.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,181.27 : 512,231.56 = 201,415.40 : x
  2. Step 2: Convert to fraction form
    371,181.27/512,231.56 = 201,415.40/x
  3. Step 3: Cross multiply
    371,181.27x = 512,231.56 × 201,415.40
  4. Step 4: Simplify right side
    371,181.27x = 103,171,321,988.87
  5. Step 5: Solve for x
    x = 103,171,321,988.87/371,181.27
  6. Step 6: Final answer
    x = 277,954.01

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1.5x scale

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.