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Finding the Fourth Proportional to 383,055.94, 528,612.22 and 210,970.62

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Solution

The fourth proportional to 383,055.94, 528,612.22 and 210,970.62 is: 291,136.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,055.94 : 528,612.22 = 210,970.62 : x
  2. Step 2: Convert to fraction form
    383,055.94/528,612.22 = 210,970.62/x
  3. Step 3: Cross multiply
    383,055.94x = 528,612.22 × 210,970.62
  4. Step 4: Simplify right side
    383,055.94x = 111,521,647,792.98
  5. Step 5: Solve for x
    x = 111,521,647,792.98/383,055.94
  6. Step 6: Final answer
    x = 291,136.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.