Home / 368,942.08-509,176.24-215,971.04

Finding the Fourth Proportional to 368,942.08, 509,176.24 and 215,971.04

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Solution

The fourth proportional to 368,942.08, 509,176.24 and 215,971.04 is: 298,061.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,942.08 : 509,176.24 = 215,971.04 : x
  2. Step 2: Convert to fraction form
    368,942.08/509,176.24 = 215,971.04/x
  3. Step 3: Cross multiply
    368,942.08x = 509,176.24 × 215,971.04
  4. Step 4: Simplify right side
    368,942.08x = 109,967,322,096.09
  5. Step 5: Solve for x
    x = 109,967,322,096.09/368,942.08
  6. Step 6: Final answer
    x = 298,061.21

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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.