Home / 380,628.60-570,942.90-222,775.80

Finding the Fourth Proportional to 380,628.60, 570,942.90 and 222,775.80

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Solution

The fourth proportional to 380,628.60, 570,942.90 and 222,775.80 is: 334,163.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,628.60 : 570,942.90 = 222,775.80 : x
  2. Step 2: Convert to fraction form
    380,628.60/570,942.90 = 222,775.80/x
  3. Step 3: Cross multiply
    380,628.60x = 570,942.90 × 222,775.80
  4. Step 4: Simplify right side
    380,628.60x = 127,192,261,301.82
  5. Step 5: Solve for x
    x = 127,192,261,301.82/380,628.60
  6. Step 6: Final answer
    x = 334,163.70

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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.