Home / 221,890.40-332,641.20-133,049.60

Finding the Fourth Proportional to 221,890.40, 332,641.20 and 133,049.60

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Solution

The fourth proportional to 221,890.40, 332,641.20 and 133,049.60 is: 199,457.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,890.40 : 332,641.20 = 133,049.60 : x
  2. Step 2: Convert to fraction form
    221,890.40/332,641.20 = 133,049.60/x
  3. Step 3: Cross multiply
    221,890.40x = 332,641.20 × 133,049.60
  4. Step 4: Simplify right side
    221,890.40x = 44,257,778,603.52
  5. Step 5: Solve for x
    x = 44,257,778,603.52/221,890.40
  6. Step 6: Final answer
    x = 199,457.83

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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.