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Finding the Fourth Proportional to 255,368.70, 382,145.85 and 222,450.30

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Solution

The fourth proportional to 255,368.70, 382,145.85 and 222,450.30 is: 332,885.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,368.70 : 382,145.85 = 222,450.30 : x
  2. Step 2: Convert to fraction form
    255,368.70/382,145.85 = 222,450.30/x
  3. Step 3: Cross multiply
    255,368.70x = 382,145.85 × 222,450.30
  4. Step 4: Simplify right side
    255,368.70x = 85,008,458,976.26
  5. Step 5: Solve for x
    x = 85,008,458,976.26/255,368.70
  6. Step 6: Final answer
    x = 332,885.19

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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.