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Finding the Fourth Proportional to 370,858.59, 511,797.15 and 209,739.87

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Solution

The fourth proportional to 370,858.59, 511,797.15 and 209,739.87 is: 289,447.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,858.59 : 511,797.15 = 209,739.87 : x
  2. Step 2: Convert to fraction form
    370,858.59/511,797.15 = 209,739.87/x
  3. Step 3: Cross multiply
    370,858.59x = 511,797.15 × 209,739.87
  4. Step 4: Simplify right side
    370,858.59x = 107,344,267,707.37
  5. Step 5: Solve for x
    x = 107,344,267,707.37/370,858.59
  6. Step 6: Final answer
    x = 289,447.97

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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.