Home / 278,401.33-384,194.87-151,076.89

Finding the Fourth Proportional to 278,401.33, 384,194.87 and 151,076.89

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Solution

The fourth proportional to 278,401.33, 384,194.87 and 151,076.89 is: 208,486.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,401.33 : 384,194.87 = 151,076.89 : x
  2. Step 2: Convert to fraction form
    278,401.33/384,194.87 = 151,076.89/x
  3. Step 3: Cross multiply
    278,401.33x = 384,194.87 × 151,076.89
  4. Step 4: Simplify right side
    278,401.33x = 58,042,966,113.55
  5. Step 5: Solve for x
    x = 58,042,966,113.55/278,401.33
  6. Step 6: Final answer
    x = 208,486.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.