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Finding the Fourth Proportional to 203,858.80, 305,788.20 and 173,678.20

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Solution

The fourth proportional to 203,858.80, 305,788.20 and 173,678.20 is: 260,517.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,858.80 : 305,788.20 = 173,678.20 : x
  2. Step 2: Convert to fraction form
    203,858.80/305,788.20 = 173,678.20/x
  3. Step 3: Cross multiply
    203,858.80x = 305,788.20 × 173,678.20
  4. Step 4: Simplify right side
    203,858.80x = 53,108,744,157.24
  5. Step 5: Solve for x
    x = 53,108,744,157.24/203,858.80
  6. Step 6: Final answer
    x = 260,517.30

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1.5x scale

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.