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Finding the Fourth Proportional to 345,933.80, 477,368.05 and 200,728.34

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Solution

The fourth proportional to 345,933.80, 477,368.05 and 200,728.34 is: 276,993.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,933.80 : 477,368.05 = 200,728.34 : x
  2. Step 2: Convert to fraction form
    345,933.80/477,368.05 = 200,728.34/x
  3. Step 3: Cross multiply
    345,933.80x = 477,368.05 × 200,728.34
  4. Step 4: Simplify right side
    345,933.80x = 95,821,296,245.54
  5. Step 5: Solve for x
    x = 95,821,296,245.54/345,933.80
  6. Step 6: Final answer
    x = 276,993.16

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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.