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Finding the Fourth Proportional to 355,152.16, 490,124.88 and 204,249.28

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Solution

The fourth proportional to 355,152.16, 490,124.88 and 204,249.28 is: 281,872.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,152.16 : 490,124.88 = 204,249.28 : x
  2. Step 2: Convert to fraction form
    355,152.16/490,124.88 = 204,249.28/x
  3. Step 3: Cross multiply
    355,152.16x = 490,124.88 × 204,249.28
  4. Step 4: Simplify right side
    355,152.16x = 100,107,653,850.09
  5. Step 5: Solve for x
    x = 100,107,653,850.09/355,152.16
  6. Step 6: Final answer
    x = 281,872.57

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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.