Home / 278,825.91-384,783.26-151,503.63

Finding the Fourth Proportional to 278,825.91, 384,783.26 and 151,503.63

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Solution

The fourth proportional to 278,825.91, 384,783.26 and 151,503.63 is: 209,076.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,825.91 : 384,783.26 = 151,503.63 : x
  2. Step 2: Convert to fraction form
    278,825.91/384,783.26 = 151,503.63/x
  3. Step 3: Cross multiply
    278,825.91x = 384,783.26 × 151,503.63
  4. Step 4: Simplify right side
    278,825.91x = 58,296,059,895.72
  5. Step 5: Solve for x
    x = 58,296,059,895.72/278,825.91
  6. Step 6: Final answer
    x = 209,076.91

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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.