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Finding the Fourth Proportional to 263,458.58, 395,188.12 and 123,315.62

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Solution

The fourth proportional to 263,458.58, 395,188.12 and 123,315.62 is: 184,973.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,458.58 : 395,188.12 = 123,315.62 : x
  2. Step 2: Convert to fraction form
    263,458.58/395,188.12 = 123,315.62/x
  3. Step 3: Cross multiply
    263,458.58x = 395,188.12 × 123,315.62
  4. Step 4: Simplify right side
    263,458.58x = 48,732,868,034.43
  5. Step 5: Solve for x
    x = 48,732,868,034.43/263,458.58
  6. Step 6: Final answer
    x = 184,973.55

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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.