Home / 370,982.66-511,947.72-209,837.52

Finding the Fourth Proportional to 370,982.66, 511,947.72 and 209,837.52

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Solution

The fourth proportional to 370,982.66, 511,947.72 and 209,837.52 is: 289,571.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,982.66 : 511,947.72 = 209,837.52 : x
  2. Step 2: Convert to fraction form
    370,982.66/511,947.72 = 209,837.52/x
  3. Step 3: Cross multiply
    370,982.66x = 511,947.72 × 209,837.52
  4. Step 4: Simplify right side
    370,982.66x = 107,425,839,934.45
  5. Step 5: Solve for x
    x = 107,425,839,934.45/370,982.66
  6. Step 6: Final answer
    x = 289,571.05

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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.