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Finding the Fourth Proportional to 371,144.68, 512,185.61 and 201,378.80

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Solution

The fourth proportional to 371,144.68, 512,185.61 and 201,378.80 is: 277,905.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,144.68 : 512,185.61 = 201,378.80 : x
  2. Step 2: Convert to fraction form
    371,144.68/512,185.61 = 201,378.80/x
  3. Step 3: Cross multiply
    371,144.68x = 512,185.61 × 201,378.80
  4. Step 4: Simplify right side
    371,144.68x = 103,143,323,519.07
  5. Step 5: Solve for x
    x = 103,143,323,519.07/371,144.68
  6. Step 6: Final answer
    x = 277,905.97

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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.