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Finding the Fourth Proportional to 223,495.76, 335,242.77 and 90,374.42

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Solution

The fourth proportional to 223,495.76, 335,242.77 and 90,374.42 is: 135,561.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,495.76 : 335,242.77 = 90,374.42 : x
  2. Step 2: Convert to fraction form
    223,495.76/335,242.77 = 90,374.42/x
  3. Step 3: Cross multiply
    223,495.76x = 335,242.77 × 90,374.42
  4. Step 4: Simplify right side
    223,495.76x = 30,297,370,897.94
  5. Step 5: Solve for x
    x = 30,297,370,897.94/223,495.76
  6. Step 6: Final answer
    x = 135,561.28

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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.