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Finding the Fourth Proportional to 550,472.55, 825,510.65 and 190,545.61

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Solution

The fourth proportional to 550,472.55, 825,510.65 and 190,545.61 is: 285,749.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,472.55 : 825,510.65 = 190,545.61 : x
  2. Step 2: Convert to fraction form
    550,472.55/825,510.65 = 190,545.61/x
  3. Step 3: Cross multiply
    550,472.55x = 825,510.65 × 190,545.61
  4. Step 4: Simplify right side
    550,472.55x = 157,297,428,778.33
  5. Step 5: Solve for x
    x = 157,297,428,778.33/550,472.55
  6. Step 6: Final answer
    x = 285,749.81

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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.