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Finding the Fourth Proportional to 279,870.96, 419,729.68 and 167,462.72

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Solution

The fourth proportional to 279,870.96, 419,729.68 and 167,462.72 is: 251,148.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,870.96 : 419,729.68 = 167,462.72 : x
  2. Step 2: Convert to fraction form
    279,870.96/419,729.68 = 167,462.72/x
  3. Step 3: Cross multiply
    279,870.96x = 419,729.68 × 167,462.72
  4. Step 4: Simplify right side
    279,870.96x = 70,289,073,877.53
  5. Step 5: Solve for x
    x = 70,289,073,877.53/279,870.96
  6. Step 6: Final answer
    x = 251,148.15

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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.