Home / 278,391.79-384,181.64-151,067.35

Finding the Fourth Proportional to 278,391.79, 384,181.64 and 151,067.35

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Solution

The fourth proportional to 278,391.79, 384,181.64 and 151,067.35 is: 208,473.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,391.79 : 384,181.64 = 151,067.35 : x
  2. Step 2: Convert to fraction form
    278,391.79/384,181.64 = 151,067.35/x
  3. Step 3: Cross multiply
    278,391.79x = 384,181.64 × 151,067.35
  4. Step 4: Simplify right side
    278,391.79x = 58,037,302,273.45
  5. Step 5: Solve for x
    x = 58,037,302,273.45/278,391.79
  6. Step 6: Final answer
    x = 208,473.47

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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.