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Finding the Fourth Proportional to 223,409.95, 335,353.67 and 90,377.17

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Solution

The fourth proportional to 223,409.95, 335,353.67 and 90,377.17 is: 135,662.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,409.95 : 335,353.67 = 90,377.17 : x
  2. Step 2: Convert to fraction form
    223,409.95/335,353.67 = 90,377.17/x
  3. Step 3: Cross multiply
    223,409.95x = 335,353.67 × 90,377.17
  4. Step 4: Simplify right side
    223,409.95x = 30,308,315,191.83
  5. Step 5: Solve for x
    x = 30,308,315,191.83/223,409.95
  6. Step 6: Final answer
    x = 135,662.33

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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.