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Finding the Fourth Proportional to 203,100.10, 280,189.90 and 122,482.82

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Solution

The fourth proportional to 203,100.10, 280,189.90 and 122,482.82 is: 168,973.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,100.10 : 280,189.90 = 122,482.82 : x
  2. Step 2: Convert to fraction form
    203,100.10/280,189.90 = 122,482.82/x
  3. Step 3: Cross multiply
    203,100.10x = 280,189.90 × 122,482.82
  4. Step 4: Simplify right side
    203,100.10x = 34,318,449,087.52
  5. Step 5: Solve for x
    x = 34,318,449,087.52/203,100.10
  6. Step 6: Final answer
    x = 168,973.08

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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.