Home / 305,096.43-421,079.67-194,762.73

Finding the Fourth Proportional to 305,096.43, 421,079.67 and 194,762.73

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Solution

The fourth proportional to 305,096.43, 421,079.67 and 194,762.73 is: 268,802.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,096.43 : 421,079.67 = 194,762.73 : x
  2. Step 2: Convert to fraction form
    305,096.43/421,079.67 = 194,762.73/x
  3. Step 3: Cross multiply
    305,096.43x = 421,079.67 × 194,762.73
  4. Step 4: Simplify right side
    305,096.43x = 82,010,627,655.75
  5. Step 5: Solve for x
    x = 82,010,627,655.75/305,096.43
  6. Step 6: Final answer
    x = 268,802.32

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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.