Home / 278,660.52-384,554.34-151,338.60

Finding the Fourth Proportional to 278,660.52, 384,554.34 and 151,338.60

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Solution

The fourth proportional to 278,660.52, 384,554.34 and 151,338.60 is: 208,848.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,660.52 : 384,554.34 = 151,338.60 : x
  2. Step 2: Convert to fraction form
    278,660.52/384,554.34 = 151,338.60/x
  3. Step 3: Cross multiply
    278,660.52x = 384,554.34 × 151,338.60
  4. Step 4: Simplify right side
    278,660.52x = 58,197,915,439.52
  5. Step 5: Solve for x
    x = 58,197,915,439.52/278,660.52
  6. Step 6: Final answer
    x = 208,848.80

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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.