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Finding the Fourth Proportional to 371,501.52, 512,667.60 and 201,736.86

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Solution

The fourth proportional to 371,501.52, 512,667.60 and 201,736.86 is: 278,394.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,501.52 : 512,667.60 = 201,736.86 : x
  2. Step 2: Convert to fraction form
    371,501.52/512,667.60 = 201,736.86/x
  3. Step 3: Cross multiply
    371,501.52x = 512,667.60 × 201,736.86
  4. Step 4: Simplify right side
    371,501.52x = 103,423,951,847.74
  5. Step 5: Solve for x
    x = 103,423,951,847.74/371,501.52
  6. Step 6: Final answer
    x = 278,394.42

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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.