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Finding the Fourth Proportional to 279,815.04, 419,846.22 and 146,663.46

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Solution

The fourth proportional to 279,815.04, 419,846.22 and 146,663.46 is: 220,060.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,815.04 : 419,846.22 = 146,663.46 : x
  2. Step 2: Convert to fraction form
    279,815.04/419,846.22 = 146,663.46/x
  3. Step 3: Cross multiply
    279,815.04x = 419,846.22 × 146,663.46
  4. Step 4: Simplify right side
    279,815.04x = 61,576,099,293.12
  5. Step 5: Solve for x
    x = 61,576,099,293.12/279,815.04
  6. Step 6: Final answer
    x = 220,060.01

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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.