Home / 278,143.05-417,214.58-275,190.60

Finding the Fourth Proportional to 278,143.05, 417,214.58 and 275,190.60

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Solution

The fourth proportional to 278,143.05, 417,214.58 and 275,190.60 is: 412,785.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,143.05 : 417,214.58 = 275,190.60 : x
  2. Step 2: Convert to fraction form
    278,143.05/417,214.58 = 275,190.60/x
  3. Step 3: Cross multiply
    278,143.05x = 417,214.58 × 275,190.60
  4. Step 4: Simplify right side
    278,143.05x = 114,813,529,223.00
  5. Step 5: Solve for x
    x = 114,813,529,223.00/278,143.05
  6. Step 6: Final answer
    x = 412,785.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.