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Finding the Fourth Proportional to 154,546.80, 231,820.20 and 43,739.76

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Solution

The fourth proportional to 154,546.80, 231,820.20 and 43,739.76 is: 65,609.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,546.80 : 231,820.20 = 43,739.76 : x
  2. Step 2: Convert to fraction form
    154,546.80/231,820.20 = 43,739.76/x
  3. Step 3: Cross multiply
    154,546.80x = 231,820.20 × 43,739.76
  4. Step 4: Simplify right side
    154,546.80x = 10,139,759,911.15
  5. Step 5: Solve for x
    x = 10,139,759,911.15/154,546.80
  6. Step 6: Final answer
    x = 65,609.64

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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.