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Finding the Fourth Proportional to 319,401.84, 479,184.84 and 119,724.96

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Solution

The fourth proportional to 319,401.84, 479,184.84 and 119,724.96 is: 179,618.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,401.84 : 479,184.84 = 119,724.96 : x
  2. Step 2: Convert to fraction form
    319,401.84/479,184.84 = 119,724.96/x
  3. Step 3: Cross multiply
    319,401.84x = 479,184.84 × 119,724.96
  4. Step 4: Simplify right side
    319,401.84x = 57,370,385,801.61
  5. Step 5: Solve for x
    x = 57,370,385,801.61/319,401.84
  6. Step 6: Final answer
    x = 179,618.21

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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.