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Finding the Fourth Proportional to 279,669.68, 419,870.39 and 166,024.96

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Solution

The fourth proportional to 279,669.68, 419,870.39 and 166,024.96 is: 249,254.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,669.68 : 419,870.39 = 166,024.96 : x
  2. Step 2: Convert to fraction form
    279,669.68/419,870.39 = 166,024.96/x
  3. Step 3: Cross multiply
    279,669.68x = 419,870.39 × 166,024.96
  4. Step 4: Simplify right side
    279,669.68x = 69,708,964,704.93
  5. Step 5: Solve for x
    x = 69,708,964,704.93/279,669.68
  6. Step 6: Final answer
    x = 249,254.64

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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.