Home / 278,944.86-384,941.61-151,620.06

Finding the Fourth Proportional to 278,944.86, 384,941.61 and 151,620.06

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Solution

The fourth proportional to 278,944.86, 384,941.61 and 151,620.06 is: 209,234.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,944.86 : 384,941.61 = 151,620.06 : x
  2. Step 2: Convert to fraction form
    278,944.86/384,941.61 = 151,620.06/x
  3. Step 3: Cross multiply
    278,944.86x = 384,941.61 × 151,620.06
  4. Step 4: Simplify right side
    278,944.86x = 58,364,870,004.70
  5. Step 5: Solve for x
    x = 58,364,870,004.70/278,944.86
  6. Step 6: Final answer
    x = 209,234.43

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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.