Home / 370,977.82-511,949.41-209,829.40

Finding the Fourth Proportional to 370,977.82, 511,949.41 and 209,829.40

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Solution

The fourth proportional to 370,977.82, 511,949.41 and 209,829.40 is: 289,564.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,977.82 : 511,949.41 = 209,829.40 : x
  2. Step 2: Convert to fraction form
    370,977.82/511,949.41 = 209,829.40/x
  3. Step 3: Cross multiply
    370,977.82x = 511,949.41 × 209,829.40
  4. Step 4: Simplify right side
    370,977.82x = 107,422,037,530.65
  5. Step 5: Solve for x
    x = 107,422,037,530.65/370,977.82
  6. Step 6: Final answer
    x = 289,564.58

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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.