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Finding the Fourth Proportional to 371,338.73, 512,447.01 and 201,572.86

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Solution

The fourth proportional to 371,338.73, 512,447.01 and 201,572.86 is: 278,170.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,338.73 : 512,447.01 = 201,572.86 : x
  2. Step 2: Convert to fraction form
    371,338.73/512,447.01 = 201,572.86/x
  3. Step 3: Cross multiply
    371,338.73x = 512,447.01 × 201,572.86
  4. Step 4: Simplify right side
    371,338.73x = 103,295,409,404.15
  5. Step 5: Solve for x
    x = 103,295,409,404.15/371,338.73
  6. Step 6: Final answer
    x = 278,170.31

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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.