Home / 256,091.10-384,136.65-108,327.90

Finding the Fourth Proportional to 256,091.10, 384,136.65 and 108,327.90

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Solution

The fourth proportional to 256,091.10, 384,136.65 and 108,327.90 is: 162,491.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,091.10 : 384,136.65 = 108,327.90 : x
  2. Step 2: Convert to fraction form
    256,091.10/384,136.65 = 108,327.90/x
  3. Step 3: Cross multiply
    256,091.10x = 384,136.65 × 108,327.90
  4. Step 4: Simplify right side
    256,091.10x = 41,612,716,607.54
  5. Step 5: Solve for x
    x = 41,612,716,607.54/256,091.10
  6. Step 6: Final answer
    x = 162,491.85

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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.