Home / 278,401.13-384,193.56-151,076.73

Finding the Fourth Proportional to 278,401.13, 384,193.56 and 151,076.73

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Solution

The fourth proportional to 278,401.13, 384,193.56 and 151,076.73 is: 208,485.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,401.13 : 384,193.56 = 151,076.73 : x
  2. Step 2: Convert to fraction form
    278,401.13/384,193.56 = 151,076.73/x
  3. Step 3: Cross multiply
    278,401.13x = 384,193.56 × 151,076.73
  4. Step 4: Simplify right side
    278,401.13x = 58,042,706,731.86
  5. Step 5: Solve for x
    x = 58,042,706,731.86/278,401.13
  6. Step 6: Final answer
    x = 208,485.89

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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.