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Finding the Fourth Proportional to 223,821, 335,731.50 and 90,676.44

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Solution

The fourth proportional to 223,821, 335,731.50 and 90,676.44 is: 136,014.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,821 : 335,731.50 = 90,676.44 : x
  2. Step 2: Convert to fraction form
    223,821/335,731.50 = 90,676.44/x
  3. Step 3: Cross multiply
    223,821x = 335,731.50 × 90,676.44
  4. Step 4: Simplify right side
    223,821x = 30,442,937,215.86
  5. Step 5: Solve for x
    x = 30,442,937,215.86/223,821
  6. Step 6: Final answer
    x = 136,014.66

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1.5x scale

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.