Home / 280,236.78-386,723.54-152,914.50

Finding the Fourth Proportional to 280,236.78, 386,723.54 and 152,914.50

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Solution

The fourth proportional to 280,236.78, 386,723.54 and 152,914.50 is: 211,020.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,236.78 : 386,723.54 = 152,914.50 : x
  2. Step 2: Convert to fraction form
    280,236.78/386,723.54 = 152,914.50/x
  3. Step 3: Cross multiply
    280,236.78x = 386,723.54 × 152,914.50
  4. Step 4: Simplify right side
    280,236.78x = 59,135,636,757.33
  5. Step 5: Solve for x
    x = 59,135,636,757.33/280,236.78
  6. Step 6: Final answer
    x = 211,020.25

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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.