Home / 370,317.79-511,080.11-209,183.22

Finding the Fourth Proportional to 370,317.79, 511,080.11 and 209,183.22

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Solution

The fourth proportional to 370,317.79, 511,080.11 and 209,183.22 is: 288,696.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,317.79 : 511,080.11 = 209,183.22 : x
  2. Step 2: Convert to fraction form
    370,317.79/511,080.11 = 209,183.22/x
  3. Step 3: Cross multiply
    370,317.79x = 511,080.11 × 209,183.22
  4. Step 4: Simplify right side
    370,317.79x = 106,909,383,087.75
  5. Step 5: Solve for x
    x = 106,909,383,087.75/370,317.79
  6. Step 6: Final answer
    x = 288,696.32

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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.