Home / 353,243.27-487,304.25-209,901.80

Finding the Fourth Proportional to 353,243.27, 487,304.25 and 209,901.80

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Solution

The fourth proportional to 353,243.27, 487,304.25 and 209,901.80 is: 289,562.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,243.27 : 487,304.25 = 209,901.80 : x
  2. Step 2: Convert to fraction form
    353,243.27/487,304.25 = 209,901.80/x
  3. Step 3: Cross multiply
    353,243.27x = 487,304.25 × 209,901.80
  4. Step 4: Simplify right side
    353,243.27x = 102,286,039,222.65
  5. Step 5: Solve for x
    x = 102,286,039,222.65/353,243.27
  6. Step 6: Final answer
    x = 289,562.60

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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.