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Finding the Fourth Proportional to 263,885.63, 395,678.48 and 103,874.84

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Solution

The fourth proportional to 263,885.63, 395,678.48 and 103,874.84 is: 155,753.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,885.63 : 395,678.48 = 103,874.84 : x
  2. Step 2: Convert to fraction form
    263,885.63/395,678.48 = 103,874.84/x
  3. Step 3: Cross multiply
    263,885.63x = 395,678.48 × 103,874.84
  4. Step 4: Simplify right side
    263,885.63x = 41,101,036,303.68
  5. Step 5: Solve for x
    x = 41,101,036,303.68/263,885.63
  6. Step 6: Final answer
    x = 155,753.22

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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.