Home / 305,096.05-421,079.15-194,762.36

Finding the Fourth Proportional to 305,096.05, 421,079.15 and 194,762.36

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Solution

The fourth proportional to 305,096.05, 421,079.15 and 194,762.36 is: 268,801.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,096.05 : 421,079.15 = 194,762.36 : x
  2. Step 2: Convert to fraction form
    305,096.05/421,079.15 = 194,762.36/x
  3. Step 3: Cross multiply
    305,096.05x = 421,079.15 × 194,762.36
  4. Step 4: Simplify right side
    305,096.05x = 82,010,368,171.83
  5. Step 5: Solve for x
    x = 82,010,368,171.83/305,096.05
  6. Step 6: Final answer
    x = 268,801.80

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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.