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Finding the Fourth Proportional to 371,658.20, 512,869.02 and 201,892.04

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Solution

The fourth proportional to 371,658.20, 512,869.02 and 201,892.04 is: 278,600.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,658.20 : 512,869.02 = 201,892.04 : x
  2. Step 2: Convert to fraction form
    371,658.20/512,869.02 = 201,892.04/x
  3. Step 3: Cross multiply
    371,658.20x = 512,869.02 × 201,892.04
  4. Step 4: Simplify right side
    371,658.20x = 103,544,172,700.60
  5. Step 5: Solve for x
    x = 103,544,172,700.60/371,658.20
  6. Step 6: Final answer
    x = 278,600.53

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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.