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Finding the Fourth Proportional to 371,052.02, 512,052.78 and 201,286.15

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Solution

The fourth proportional to 371,052.02, 512,052.78 and 201,286.15 is: 277,775.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,052.02 : 512,052.78 = 201,286.15 : x
  2. Step 2: Convert to fraction form
    371,052.02/512,052.78 = 201,286.15/x
  3. Step 3: Cross multiply
    371,052.02x = 512,052.78 × 201,286.15
  4. Step 4: Simplify right side
    371,052.02x = 103,069,132,683.00
  5. Step 5: Solve for x
    x = 103,069,132,683.00/371,052.02
  6. Step 6: Final answer
    x = 277,775.43

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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.