Home / 278,583.16-384,445.26-151,258.36

Finding the Fourth Proportional to 278,583.16, 384,445.26 and 151,258.36

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Solution

The fourth proportional to 278,583.16, 384,445.26 and 151,258.36 is: 208,736.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,583.16 : 384,445.26 = 151,258.36 : x
  2. Step 2: Convert to fraction form
    278,583.16/384,445.26 = 151,258.36/x
  3. Step 3: Cross multiply
    278,583.16x = 384,445.26 × 151,258.36
  4. Step 4: Simplify right side
    278,583.16x = 58,150,559,537.37
  5. Step 5: Solve for x
    x = 58,150,559,537.37/278,583.16
  6. Step 6: Final answer
    x = 208,736.81

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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.