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Finding the Fourth Proportional to 339,067.28, 466,845.96 and 287,970.32

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Solution

The fourth proportional to 339,067.28, 466,845.96 and 287,970.32 is: 396,492.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,067.28 : 466,845.96 = 287,970.32 : x
  2. Step 2: Convert to fraction form
    339,067.28/466,845.96 = 287,970.32/x
  3. Step 3: Cross multiply
    339,067.28x = 466,845.96 × 287,970.32
  4. Step 4: Simplify right side
    339,067.28x = 134,437,780,491.91
  5. Step 5: Solve for x
    x = 134,437,780,491.91/339,067.28
  6. Step 6: Final answer
    x = 396,492.93

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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.