Home / 305,343.12-458,056.34-105,609.96

Finding the Fourth Proportional to 305,343.12, 458,056.34 and 105,609.96

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Solution

The fourth proportional to 305,343.12, 458,056.34 and 105,609.96 is: 158,429.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,343.12 : 458,056.34 = 105,609.96 : x
  2. Step 2: Convert to fraction form
    305,343.12/458,056.34 = 105,609.96/x
  3. Step 3: Cross multiply
    305,343.12x = 458,056.34 × 105,609.96
  4. Step 4: Simplify right side
    305,343.12x = 48,375,311,745.15
  5. Step 5: Solve for x
    x = 48,375,311,745.15/305,343.12
  6. Step 6: Final answer
    x = 158,429.35

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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.