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Finding the Fourth Proportional to 279,695.87, 419,909.67 and 166,051.15

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Solution

The fourth proportional to 279,695.87, 419,909.67 and 166,051.15 is: 249,293.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,695.87 : 419,909.67 = 166,051.15 : x
  2. Step 2: Convert to fraction form
    279,695.87/419,909.67 = 166,051.15/x
  3. Step 3: Cross multiply
    279,695.87x = 419,909.67 × 166,051.15
  4. Step 4: Simplify right side
    279,695.87x = 69,726,482,549.85
  5. Step 5: Solve for x
    x = 69,726,482,549.85/279,695.87
  6. Step 6: Final answer
    x = 249,293.93

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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.