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Finding the Fourth Proportional to 202,879.60, 304,319.40 and 189,660.40

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Solution

The fourth proportional to 202,879.60, 304,319.40 and 189,660.40 is: 284,490.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,879.60 : 304,319.40 = 189,660.40 : x
  2. Step 2: Convert to fraction form
    202,879.60/304,319.40 = 189,660.40/x
  3. Step 3: Cross multiply
    202,879.60x = 304,319.40 × 189,660.40
  4. Step 4: Simplify right side
    202,879.60x = 57,717,339,131.76
  5. Step 5: Solve for x
    x = 57,717,339,131.76/202,879.60
  6. Step 6: Final answer
    x = 284,490.60

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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.