Home / 320,101.06-479,894.28-219,964.54

Finding the Fourth Proportional to 320,101.06, 479,894.28 and 219,964.54

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Solution

The fourth proportional to 320,101.06, 479,894.28 and 219,964.54 is: 329,769.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,101.06 : 479,894.28 = 219,964.54 : x
  2. Step 2: Convert to fraction form
    320,101.06/479,894.28 = 219,964.54/x
  3. Step 3: Cross multiply
    320,101.06x = 479,894.28 × 219,964.54
  4. Step 4: Simplify right side
    320,101.06x = 105,559,724,548.83
  5. Step 5: Solve for x
    x = 105,559,724,548.83/320,101.06
  6. Step 6: Final answer
    x = 329,769.99

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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.