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Finding the Fourth Proportional to 230,793.44, 318,482 and 128,825.48

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Solution

The fourth proportional to 230,793.44, 318,482 and 128,825.48 is: 177,771.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,793.44 : 318,482 = 128,825.48 : x
  2. Step 2: Convert to fraction form
    230,793.44/318,482 = 128,825.48/x
  3. Step 3: Cross multiply
    230,793.44x = 318,482 × 128,825.48
  4. Step 4: Simplify right side
    230,793.44x = 41,028,596,521.36
  5. Step 5: Solve for x
    x = 41,028,596,521.36/230,793.44
  6. Step 6: Final answer
    x = 177,771.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.