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Finding the Fourth Proportional to 371,122.56, 512,149.16 and 201,356.68

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Solution

The fourth proportional to 371,122.56, 512,149.16 and 201,356.68 is: 277,872.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,122.56 : 512,149.16 = 201,356.68 : x
  2. Step 2: Convert to fraction form
    371,122.56/512,149.16 = 201,356.68/x
  3. Step 3: Cross multiply
    371,122.56x = 512,149.16 × 201,356.68
  4. Step 4: Simplify right side
    371,122.56x = 103,124,654,522.39
  5. Step 5: Solve for x
    x = 103,124,654,522.39/371,122.56
  6. Step 6: Final answer
    x = 277,872.23

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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.