Home / 438,942.72-658,457.94-119,099.68

Finding the Fourth Proportional to 438,942.72, 658,457.94 and 119,099.68

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Solution

The fourth proportional to 438,942.72, 658,457.94 and 119,099.68 is: 178,661.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,942.72 : 658,457.94 = 119,099.68 : x
  2. Step 2: Convert to fraction form
    438,942.72/658,457.94 = 119,099.68/x
  3. Step 3: Cross multiply
    438,942.72x = 658,457.94 × 119,099.68
  4. Step 4: Simplify right side
    438,942.72x = 78,422,129,947.46
  5. Step 5: Solve for x
    x = 78,422,129,947.46/438,942.72
  6. Step 6: Final answer
    x = 178,661.42

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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.