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Finding the Fourth Proportional to 263,989.95, 395,810 and 95,488.10

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Solution

The fourth proportional to 263,989.95, 395,810 and 95,488.10 is: 143,168.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,989.95 : 395,810 = 95,488.10 : x
  2. Step 2: Convert to fraction form
    263,989.95/395,810 = 95,488.10/x
  3. Step 3: Cross multiply
    263,989.95x = 395,810 × 95,488.10
  4. Step 4: Simplify right side
    263,989.95x = 37,795,144,861
  5. Step 5: Solve for x
    x = 37,795,144,861/263,989.95
  6. Step 6: Final answer
    x = 143,168.88

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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.