Home / 380,440.73-570,407.82-228,295.23

Finding the Fourth Proportional to 380,440.73, 570,407.82 and 228,295.23

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Solution

The fourth proportional to 380,440.73, 570,407.82 and 228,295.23 is: 342,290.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,440.73 : 570,407.82 = 228,295.23 : x
  2. Step 2: Convert to fraction form
    380,440.73/570,407.82 = 228,295.23/x
  3. Step 3: Cross multiply
    380,440.73x = 570,407.82 × 228,295.23
  4. Step 4: Simplify right side
    380,440.73x = 130,221,384,460.70
  5. Step 5: Solve for x
    x = 130,221,384,460.70/380,440.73
  6. Step 6: Final answer
    x = 342,290.86

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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.