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Finding the Fourth Proportional to 312,646.91, 467,849.28 and 270,671.39

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Solution

The fourth proportional to 312,646.91, 467,849.28 and 270,671.39 is: 405,036.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,646.91 : 467,849.28 = 270,671.39 : x
  2. Step 2: Convert to fraction form
    312,646.91/467,849.28 = 270,671.39/x
  3. Step 3: Cross multiply
    312,646.91x = 467,849.28 × 270,671.39
  4. Step 4: Simplify right side
    312,646.91x = 126,633,415,358.31
  5. Step 5: Solve for x
    x = 126,633,415,358.31/312,646.91
  6. Step 6: Final answer
    x = 405,036.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.