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Finding the Fourth Proportional to 281,215.60, 422,807.55 and 275,310.70

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Solution

The fourth proportional to 281,215.60, 422,807.55 and 275,310.70 is: 413,929.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,215.60 : 422,807.55 = 275,310.70 : x
  2. Step 2: Convert to fraction form
    281,215.60/422,807.55 = 275,310.70/x
  3. Step 3: Cross multiply
    281,215.60x = 422,807.55 × 275,310.70
  4. Step 4: Simplify right side
    281,215.60x = 116,403,442,555.79
  5. Step 5: Solve for x
    x = 116,403,442,555.79/281,215.60
  6. Step 6: Final answer
    x = 413,929.54

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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.