Home / 291,917.30-438,039.94-158,806.86

Finding the Fourth Proportional to 291,917.30, 438,039.94 and 158,806.86

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Solution

The fourth proportional to 291,917.30, 438,039.94 and 158,806.86 is: 238,299.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,917.30 : 438,039.94 = 158,806.86 : x
  2. Step 2: Convert to fraction form
    291,917.30/438,039.94 = 158,806.86/x
  3. Step 3: Cross multiply
    291,917.30x = 438,039.94 × 158,806.86
  4. Step 4: Simplify right side
    291,917.30x = 69,563,747,425.99
  5. Step 5: Solve for x
    x = 69,563,747,425.99/291,917.30
  6. Step 6: Final answer
    x = 238,299.50

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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.