Home / 423,845.84-635,769.30-108,303.05

Finding the Fourth Proportional to 423,845.84, 635,769.30 and 108,303.05

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Solution

The fourth proportional to 423,845.84, 635,769.30 and 108,303.05 is: 162,454.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,845.84 : 635,769.30 = 108,303.05 : x
  2. Step 2: Convert to fraction form
    423,845.84/635,769.30 = 108,303.05/x
  3. Step 3: Cross multiply
    423,845.84x = 635,769.30 × 108,303.05
  4. Step 4: Simplify right side
    423,845.84x = 68,855,754,286.37
  5. Step 5: Solve for x
    x = 68,855,754,286.37/423,845.84
  6. Step 6: Final answer
    x = 162,454.71

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.