Home / 370,966.82-511,945.80-209,818.72

Finding the Fourth Proportional to 370,966.82, 511,945.80 and 209,818.72

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Solution

The fourth proportional to 370,966.82, 511,945.80 and 209,818.72 is: 289,556.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,966.82 : 511,945.80 = 209,818.72 : x
  2. Step 2: Convert to fraction form
    370,966.82/511,945.80 = 209,818.72/x
  3. Step 3: Cross multiply
    370,966.82x = 511,945.80 × 209,818.72
  4. Step 4: Simplify right side
    370,966.82x = 107,415,809,905.65
  5. Step 5: Solve for x
    x = 107,415,809,905.65/370,966.82
  6. Step 6: Final answer
    x = 289,556.38

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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.