Home / 278,558.19-384,410.30-151,233.80

Finding the Fourth Proportional to 278,558.19, 384,410.30 and 151,233.80

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Solution

The fourth proportional to 278,558.19, 384,410.30 and 151,233.80 is: 208,702.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,558.19 : 384,410.30 = 151,233.80 : x
  2. Step 2: Convert to fraction form
    278,558.19/384,410.30 = 151,233.80/x
  3. Step 3: Cross multiply
    278,558.19x = 384,410.30 × 151,233.80
  4. Step 4: Simplify right side
    278,558.19x = 58,135,827,749.92
  5. Step 5: Solve for x
    x = 58,135,827,749.92/278,558.19
  6. Step 6: Final answer
    x = 208,702.63

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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.