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Finding the Fourth Proportional to 319,415.84, 479,205.84 and 119,738.96

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Solution

The fourth proportional to 319,415.84, 479,205.84 and 119,738.96 is: 179,639.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,415.84 : 479,205.84 = 119,738.96 : x
  2. Step 2: Convert to fraction form
    319,415.84/479,205.84 = 119,738.96/x
  3. Step 3: Cross multiply
    319,415.84x = 479,205.84 × 119,738.96
  4. Step 4: Simplify right side
    319,415.84x = 57,379,608,907.53
  5. Step 5: Solve for x
    x = 57,379,608,907.53/319,415.84
  6. Step 6: Final answer
    x = 179,639.21

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1.5x scale

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.