Home / 278,560.80-384,412.77-151,236.36

Finding the Fourth Proportional to 278,560.80, 384,412.77 and 151,236.36

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Solution

The fourth proportional to 278,560.80, 384,412.77 and 151,236.36 is: 208,705.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,560.80 : 384,412.77 = 151,236.36 : x
  2. Step 2: Convert to fraction form
    278,560.80/384,412.77 = 151,236.36/x
  3. Step 3: Cross multiply
    278,560.80x = 384,412.77 × 151,236.36
  4. Step 4: Simplify right side
    278,560.80x = 58,137,188,072.32
  5. Step 5: Solve for x
    x = 58,137,188,072.32/278,560.80
  6. Step 6: Final answer
    x = 208,705.56

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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.