Home / 330,669.45-496,029.80-102,936.45

Finding the Fourth Proportional to 330,669.45, 496,029.80 and 102,936.45

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Solution

The fourth proportional to 330,669.45, 496,029.80 and 102,936.45 is: 154,412.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,669.45 : 496,029.80 = 102,936.45 : x
  2. Step 2: Convert to fraction form
    330,669.45/496,029.80 = 102,936.45/x
  3. Step 3: Cross multiply
    330,669.45x = 496,029.80 × 102,936.45
  4. Step 4: Simplify right side
    330,669.45x = 51,059,546,191.53
  5. Step 5: Solve for x
    x = 51,059,546,191.53/330,669.45
  6. Step 6: Final answer
    x = 154,412.65

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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.