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Finding the Fourth Proportional to 275,939.98, 380,807.70 and 168,558.28

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Solution

The fourth proportional to 275,939.98, 380,807.70 and 168,558.28 is: 232,616.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,939.98 : 380,807.70 = 168,558.28 : x
  2. Step 2: Convert to fraction form
    275,939.98/380,807.70 = 168,558.28/x
  3. Step 3: Cross multiply
    275,939.98x = 380,807.70 × 168,558.28
  4. Step 4: Simplify right side
    275,939.98x = 64,188,290,922.76
  5. Step 5: Solve for x
    x = 64,188,290,922.76/275,939.98
  6. Step 6: Final answer
    x = 232,616.86

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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.