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Finding the Fourth Proportional to 275,802.75, 380,355.08 and 178,905.69

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Solution

The fourth proportional to 275,802.75, 380,355.08 and 178,905.69 is: 246,725.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,802.75 : 380,355.08 = 178,905.69 : x
  2. Step 2: Convert to fraction form
    275,802.75/380,355.08 = 178,905.69/x
  3. Step 3: Cross multiply
    275,802.75x = 380,355.08 × 178,905.69
  4. Step 4: Simplify right side
    275,802.75x = 68,047,687,137.88
  5. Step 5: Solve for x
    x = 68,047,687,137.88/275,802.75
  6. Step 6: Final answer
    x = 246,725.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.