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Finding the Fourth Proportional to 371,676.15, 512,887.82 and 201,906.63

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Solution

The fourth proportional to 371,676.15, 512,887.82 and 201,906.63 is: 278,617.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,676.15 : 512,887.82 = 201,906.63 : x
  2. Step 2: Convert to fraction form
    371,676.15/512,887.82 = 201,906.63/x
  3. Step 3: Cross multiply
    371,676.15x = 512,887.82 × 201,906.63
  4. Step 4: Simplify right side
    371,676.15x = 103,555,450,294.71
  5. Step 5: Solve for x
    x = 103,555,450,294.71/371,676.15
  6. Step 6: Final answer
    x = 278,617.42

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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.