Home / 370,975.31-511,945.97-209,826.89

Finding the Fourth Proportional to 370,975.31, 511,945.97 and 209,826.89

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Solution

The fourth proportional to 370,975.31, 511,945.97 and 209,826.89 is: 289,561.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,975.31 : 511,945.97 = 209,826.89 : x
  2. Step 2: Convert to fraction form
    370,975.31/511,945.97 = 209,826.89/x
  3. Step 3: Cross multiply
    370,975.31x = 511,945.97 × 209,826.89
  4. Step 4: Simplify right side
    370,975.31x = 107,420,030,963.86
  5. Step 5: Solve for x
    x = 107,420,030,963.86/370,975.31
  6. Step 6: Final answer
    x = 289,561.13

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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.