Home / 320,050.36-480,376.86-162,391.96

Finding the Fourth Proportional to 320,050.36, 480,376.86 and 162,391.96

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Solution

The fourth proportional to 320,050.36, 480,376.86 and 162,391.96 is: 243,740.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,050.36 : 480,376.86 = 162,391.96 : x
  2. Step 2: Convert to fraction form
    320,050.36/480,376.86 = 162,391.96/x
  3. Step 3: Cross multiply
    320,050.36x = 480,376.86 × 162,391.96
  4. Step 4: Simplify right side
    320,050.36x = 78,009,339,834.05
  5. Step 5: Solve for x
    x = 78,009,339,834.05/320,050.36
  6. Step 6: Final answer
    x = 243,740.83

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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.