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Finding the Fourth Proportional to 366,837.20, 550,255.80 and 189,690.20

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Solution

The fourth proportional to 366,837.20, 550,255.80 and 189,690.20 is: 284,535.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,837.20 : 550,255.80 = 189,690.20 : x
  2. Step 2: Convert to fraction form
    366,837.20/550,255.80 = 189,690.20/x
  3. Step 3: Cross multiply
    366,837.20x = 550,255.80 × 189,690.20
  4. Step 4: Simplify right side
    366,837.20x = 104,378,132,753.16
  5. Step 5: Solve for x
    x = 104,378,132,753.16/366,837.20
  6. Step 6: Final answer
    x = 284,535.30

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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.