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Finding the Fourth Proportional to 370,485.17, 511,270.07 and 200,719.29

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Solution

The fourth proportional to 370,485.17, 511,270.07 and 200,719.29 is: 276,992.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,485.17 : 511,270.07 = 200,719.29 : x
  2. Step 2: Convert to fraction form
    370,485.17/511,270.07 = 200,719.29/x
  3. Step 3: Cross multiply
    370,485.17x = 511,270.07 × 200,719.29
  4. Step 4: Simplify right side
    370,485.17x = 102,621,764,445.05
  5. Step 5: Solve for x
    x = 102,621,764,445.05/370,485.17
  6. Step 6: Final answer
    x = 276,992.91

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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.