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Finding the Fourth Proportional to 203,054.31, 280,127.00 and 122,437.05

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Solution

The fourth proportional to 203,054.31, 280,127.00 and 122,437.05 is: 168,910.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,054.31 : 280,127.00 = 122,437.05 : x
  2. Step 2: Convert to fraction form
    203,054.31/280,127.00 = 122,437.05/x
  3. Step 3: Cross multiply
    203,054.31x = 280,127.00 × 122,437.05
  4. Step 4: Simplify right side
    203,054.31x = 34,297,922,893.16
  5. Step 5: Solve for x
    x = 34,297,922,893.16/203,054.31
  6. Step 6: Final answer
    x = 168,910.09

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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.