Home / 319,384.06-479,119.83-108,965.50

Finding the Fourth Proportional to 319,384.06, 479,119.83 and 108,965.50

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Solution

The fourth proportional to 319,384.06, 479,119.83 and 108,965.50 is: 163,463.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,384.06 : 479,119.83 = 108,965.50 : x
  2. Step 2: Convert to fraction form
    319,384.06/479,119.83 = 108,965.50/x
  3. Step 3: Cross multiply
    319,384.06x = 479,119.83 × 108,965.50
  4. Step 4: Simplify right side
    319,384.06x = 52,207,531,835.87
  5. Step 5: Solve for x
    x = 52,207,531,835.87/319,384.06
  6. Step 6: Final answer
    x = 163,463.17

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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.