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Finding the Fourth Proportional to 203,166.80, 304,750.20 and 136,811.60

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Solution

The fourth proportional to 203,166.80, 304,750.20 and 136,811.60 is: 205,217.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,166.80 : 304,750.20 = 136,811.60 : x
  2. Step 2: Convert to fraction form
    203,166.80/304,750.20 = 136,811.60/x
  3. Step 3: Cross multiply
    203,166.80x = 304,750.20 × 136,811.60
  4. Step 4: Simplify right side
    203,166.80x = 41,693,362,462.32
  5. Step 5: Solve for x
    x = 41,693,362,462.32/203,166.80
  6. Step 6: Final answer
    x = 205,217.40

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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.