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Finding the Fourth Proportional to 223,390.05, 335,128.28 and 65,623.65

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Solution

The fourth proportional to 223,390.05, 335,128.28 and 65,623.65 is: 98,448.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,390.05 : 335,128.28 = 65,623.65 : x
  2. Step 2: Convert to fraction form
    223,390.05/335,128.28 = 65,623.65/x
  3. Step 3: Cross multiply
    223,390.05x = 335,128.28 × 65,623.65
  4. Step 4: Simplify right side
    223,390.05x = 21,992,340,623.70
  5. Step 5: Solve for x
    x = 21,992,340,623.70/223,390.05
  6. Step 6: Final answer
    x = 98,448.17

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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.