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Finding the Fourth Proportional to 355,561.12, 490,797.90 and 204,718.24

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Solution

The fourth proportional to 355,561.12, 490,797.90 and 204,718.24 is: 282,582.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,561.12 : 490,797.90 = 204,718.24 : x
  2. Step 2: Convert to fraction form
    355,561.12/490,797.90 = 204,718.24/x
  3. Step 3: Cross multiply
    355,561.12x = 490,797.90 × 204,718.24
  4. Step 4: Simplify right side
    355,561.12x = 100,475,282,283.70
  5. Step 5: Solve for x
    x = 100,475,282,283.70/355,561.12
  6. Step 6: Final answer
    x = 282,582.31

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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.