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Finding the Fourth Proportional to 202,586.40, 303,879.60 and 190,922.40

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Solution

The fourth proportional to 202,586.40, 303,879.60 and 190,922.40 is: 286,383.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,586.40 : 303,879.60 = 190,922.40 : x
  2. Step 2: Convert to fraction form
    202,586.40/303,879.60 = 190,922.40/x
  3. Step 3: Cross multiply
    202,586.40x = 303,879.60 × 190,922.40
  4. Step 4: Simplify right side
    202,586.40x = 58,017,422,543.04
  5. Step 5: Solve for x
    x = 58,017,422,543.04/202,586.40
  6. Step 6: Final answer
    x = 286,383.60

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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.