Home / 278,056.58-416,804.44-109,511.78

Finding the Fourth Proportional to 278,056.58, 416,804.44 and 109,511.78

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Solution

The fourth proportional to 278,056.58, 416,804.44 and 109,511.78 is: 164,157.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,056.58 : 416,804.44 = 109,511.78 : x
  2. Step 2: Convert to fraction form
    278,056.58/416,804.44 = 109,511.78/x
  3. Step 3: Cross multiply
    278,056.58x = 416,804.44 × 109,511.78
  4. Step 4: Simplify right side
    278,056.58x = 45,644,996,136.30
  5. Step 5: Solve for x
    x = 45,644,996,136.30/278,056.58
  6. Step 6: Final answer
    x = 164,157.22

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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.