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Finding the Fourth Proportional to 279,940.02, 419,909.82 and 69,577.98

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Solution

The fourth proportional to 279,940.02, 419,909.82 and 69,577.98 is: 104,366.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,940.02 : 419,909.82 = 69,577.98 : x
  2. Step 2: Convert to fraction form
    279,940.02/419,909.82 = 69,577.98/x
  3. Step 3: Cross multiply
    279,940.02x = 419,909.82 × 69,577.98
  4. Step 4: Simplify right side
    279,940.02x = 29,216,477,057.76
  5. Step 5: Solve for x
    x = 29,216,477,057.76/279,940.02
  6. Step 6: Final answer
    x = 104,366.92

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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.