Home / 278,400.89-384,194.24-151,076.45

Finding the Fourth Proportional to 278,400.89, 384,194.24 and 151,076.45

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Solution

The fourth proportional to 278,400.89, 384,194.24 and 151,076.45 is: 208,486.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,400.89 : 384,194.24 = 151,076.45 : x
  2. Step 2: Convert to fraction form
    278,400.89/384,194.24 = 151,076.45/x
  3. Step 3: Cross multiply
    278,400.89x = 384,194.24 × 151,076.45
  4. Step 4: Simplify right side
    278,400.89x = 58,042,702,661.29
  5. Step 5: Solve for x
    x = 58,042,702,661.29/278,400.89
  6. Step 6: Final answer
    x = 208,486.05

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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.