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Finding the Fourth Proportional to 215,805.15, 323,801.01 and 115,848.62

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Solution

The fourth proportional to 215,805.15, 323,801.01 and 115,848.62 is: 173,823.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,805.15 : 323,801.01 = 115,848.62 : x
  2. Step 2: Convert to fraction form
    215,805.15/323,801.01 = 115,848.62/x
  3. Step 3: Cross multiply
    215,805.15x = 323,801.01 × 115,848.62
  4. Step 4: Simplify right side
    215,805.15x = 37,511,898,544.10
  5. Step 5: Solve for x
    x = 37,511,898,544.10/215,805.15
  6. Step 6: Final answer
    x = 173,823.00

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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.