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Finding the Fourth Proportional to 154,393.80, 231,558.22 and 43,559.88

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Solution

The fourth proportional to 154,393.80, 231,558.22 and 43,559.88 is: 65,330.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,393.80 : 231,558.22 = 43,559.88 : x
  2. Step 2: Convert to fraction form
    154,393.80/231,558.22 = 43,559.88/x
  3. Step 3: Cross multiply
    154,393.80x = 231,558.22 × 43,559.88
  4. Step 4: Simplify right side
    154,393.80x = 10,086,648,276.21
  5. Step 5: Solve for x
    x = 10,086,648,276.21/154,393.80
  6. Step 6: Final answer
    x = 65,330.66

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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.