Home / 370,984.88-511,959.20-209,836.46

Finding the Fourth Proportional to 370,984.88, 511,959.20 and 209,836.46

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Solution

The fourth proportional to 370,984.88, 511,959.20 and 209,836.46 is: 289,574.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,984.88 : 511,959.20 = 209,836.46 : x
  2. Step 2: Convert to fraction form
    370,984.88/511,959.20 = 209,836.46/x
  3. Step 3: Cross multiply
    370,984.88x = 511,959.20 × 209,836.46
  4. Step 4: Simplify right side
    370,984.88x = 107,427,706,192.43
  5. Step 5: Solve for x
    x = 107,427,706,192.43/370,984.88
  6. Step 6: Final answer
    x = 289,574.35

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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.