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Finding the Fourth Proportional to 223,406.45, 335,348.42 and 90,373.67

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Solution

The fourth proportional to 223,406.45, 335,348.42 and 90,373.67 is: 135,657.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,406.45 : 335,348.42 = 90,373.67 : x
  2. Step 2: Convert to fraction form
    223,406.45/335,348.42 = 90,373.67/x
  3. Step 3: Cross multiply
    223,406.45x = 335,348.42 × 90,373.67
  4. Step 4: Simplify right side
    223,406.45x = 30,306,665,315.49
  5. Step 5: Solve for x
    x = 30,306,665,315.49/223,406.45
  6. Step 6: Final answer
    x = 135,657.08

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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.