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Finding the Fourth Proportional to 371,178.28, 512,227.40 and 201,412.41

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Solution

The fourth proportional to 371,178.28, 512,227.40 and 201,412.41 is: 277,949.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,178.28 : 512,227.40 = 201,412.41 : x
  2. Step 2: Convert to fraction form
    371,178.28/512,227.40 = 201,412.41/x
  3. Step 3: Cross multiply
    371,178.28x = 512,227.40 × 201,412.41
  4. Step 4: Simplify right side
    371,178.28x = 103,168,952,174.12
  5. Step 5: Solve for x
    x = 103,168,952,174.12/371,178.28
  6. Step 6: Final answer
    x = 277,949.86

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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.