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Finding the Fourth Proportional to 222,287.32, 333,445.82 and 78,175.85

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Solution

The fourth proportional to 222,287.32, 333,445.82 and 78,175.85 is: 117,268.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,287.32 : 333,445.82 = 78,175.85 : x
  2. Step 2: Convert to fraction form
    222,287.32/333,445.82 = 78,175.85/x
  3. Step 3: Cross multiply
    222,287.32x = 333,445.82 × 78,175.85
  4. Step 4: Simplify right side
    222,287.32x = 26,067,410,664.71
  5. Step 5: Solve for x
    x = 26,067,410,664.71/222,287.32
  6. Step 6: Final answer
    x = 117,268.99

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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.