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Finding the Fourth Proportional to 304,605.09, 456,408.27 and 215,698.95

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Solution

The fourth proportional to 304,605.09, 456,408.27 and 215,698.95 is: 323,194.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,605.09 : 456,408.27 = 215,698.95 : x
  2. Step 2: Convert to fraction form
    304,605.09/456,408.27 = 215,698.95/x
  3. Step 3: Cross multiply
    304,605.09x = 456,408.27 × 215,698.95
  4. Step 4: Simplify right side
    304,605.09x = 98,446,784,610.32
  5. Step 5: Solve for x
    x = 98,446,784,610.32/304,605.09
  6. Step 6: Final answer
    x = 323,194.81

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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.