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Finding the Fourth Proportional to 489,183.84, 733,431.87 and 215,500.23

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Solution

The fourth proportional to 489,183.84, 733,431.87 and 215,500.23 is: 323,098.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    489,183.84 : 733,431.87 = 215,500.23 : x
  2. Step 2: Convert to fraction form
    489,183.84/733,431.87 = 215,500.23/x
  3. Step 3: Cross multiply
    489,183.84x = 733,431.87 × 215,500.23
  4. Step 4: Simplify right side
    489,183.84x = 158,054,736,674.33
  5. Step 5: Solve for x
    x = 158,054,736,674.33/489,183.84
  6. Step 6: Final answer
    x = 323,098.85

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1.5x scale

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.