Home / 256,824.96-385,308.30-107,135.60

Finding the Fourth Proportional to 256,824.96, 385,308.30 and 107,135.60

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Solution

The fourth proportional to 256,824.96, 385,308.30 and 107,135.60 is: 160,732.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,824.96 : 385,308.30 = 107,135.60 : x
  2. Step 2: Convert to fraction form
    256,824.96/385,308.30 = 107,135.60/x
  3. Step 3: Cross multiply
    256,824.96x = 385,308.30 × 107,135.60
  4. Step 4: Simplify right side
    256,824.96x = 41,280,235,905.48
  5. Step 5: Solve for x
    x = 41,280,235,905.48/256,824.96
  6. Step 6: Final answer
    x = 160,732.96

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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.