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Finding the Fourth Proportional to 550,289.89, 825,491.40 and 190,460.04

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Solution

The fourth proportional to 550,289.89, 825,491.40 and 190,460.04 is: 285,709.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,289.89 : 825,491.40 = 190,460.04 : x
  2. Step 2: Convert to fraction form
    550,289.89/825,491.40 = 190,460.04/x
  3. Step 3: Cross multiply
    550,289.89x = 825,491.40 × 190,460.04
  4. Step 4: Simplify right side
    550,289.89x = 157,223,125,063.66
  5. Step 5: Solve for x
    x = 157,223,125,063.66/550,289.89
  6. Step 6: Final answer
    x = 285,709.64

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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.