Home / 310,717.97-428,849.69-194,485.35

Finding the Fourth Proportional to 310,717.97, 428,849.69 and 194,485.35

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Solution

The fourth proportional to 310,717.97, 428,849.69 and 194,485.35 is: 268,426.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,717.97 : 428,849.69 = 194,485.35 : x
  2. Step 2: Convert to fraction form
    310,717.97/428,849.69 = 194,485.35/x
  3. Step 3: Cross multiply
    310,717.97x = 428,849.69 × 194,485.35
  4. Step 4: Simplify right side
    310,717.97x = 83,404,983,786.78
  5. Step 5: Solve for x
    x = 83,404,983,786.78/310,717.97
  6. Step 6: Final answer
    x = 268,426.65

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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.