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Finding the Fourth Proportional to 378,055.20, 567,082.80 and 200,908.20

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Solution

The fourth proportional to 378,055.20, 567,082.80 and 200,908.20 is: 301,362.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,055.20 : 567,082.80 = 200,908.20 : x
  2. Step 2: Convert to fraction form
    378,055.20/567,082.80 = 200,908.20/x
  3. Step 3: Cross multiply
    378,055.20x = 567,082.80 × 200,908.20
  4. Step 4: Simplify right side
    378,055.20x = 113,931,584,598.96
  5. Step 5: Solve for x
    x = 113,931,584,598.96/378,055.20
  6. Step 6: Final answer
    x = 301,362.30

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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.