Home / 278,439.41-384,236.10-151,112.27

Finding the Fourth Proportional to 278,439.41, 384,236.10 and 151,112.27

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Solution

The fourth proportional to 278,439.41, 384,236.10 and 151,112.27 is: 208,529.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,439.41 : 384,236.10 = 151,112.27 : x
  2. Step 2: Convert to fraction form
    278,439.41/384,236.10 = 151,112.27/x
  3. Step 3: Cross multiply
    278,439.41x = 384,236.10 × 151,112.27
  4. Step 4: Simplify right side
    278,439.41x = 58,062,787,365.77
  5. Step 5: Solve for x
    x = 58,062,787,365.77/278,439.41
  6. Step 6: Final answer
    x = 208,529.35

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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.