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Finding the Fourth Proportional to 154,223.80, 231,335.70 and 92,015.80

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Solution

The fourth proportional to 154,223.80, 231,335.70 and 92,015.80 is: 138,023.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    154,223.80 : 231,335.70 = 92,015.80 : x
  2. Step 2: Convert to fraction form
    154,223.80/231,335.70 = 92,015.80/x
  3. Step 3: Cross multiply
    154,223.80x = 231,335.70 × 92,015.80
  4. Step 4: Simplify right side
    154,223.80x = 21,286,539,504.06
  5. Step 5: Solve for x
    x = 21,286,539,504.06/154,223.80
  6. Step 6: Final answer
    x = 138,023.70

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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.