Home / 278,428.14-384,228.60-151,103.73

Finding the Fourth Proportional to 278,428.14, 384,228.60 and 151,103.73

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Solution

The fourth proportional to 278,428.14, 384,228.60 and 151,103.73 is: 208,521.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,428.14 : 384,228.60 = 151,103.73 : x
  2. Step 2: Convert to fraction form
    278,428.14/384,228.60 = 151,103.73/x
  3. Step 3: Cross multiply
    278,428.14x = 384,228.60 × 151,103.73
  4. Step 4: Simplify right side
    278,428.14x = 58,058,374,632.68
  5. Step 5: Solve for x
    x = 58,058,374,632.68/278,428.14
  6. Step 6: Final answer
    x = 208,521.94

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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.