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Finding the Fourth Proportional to 203,209.70, 304,814.55 and 123,493.55

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Solution

The fourth proportional to 203,209.70, 304,814.55 and 123,493.55 is: 185,240.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,209.70 : 304,814.55 = 123,493.55 : x
  2. Step 2: Convert to fraction form
    203,209.70/304,814.55 = 123,493.55/x
  3. Step 3: Cross multiply
    203,209.70x = 304,814.55 × 123,493.55
  4. Step 4: Simplify right side
    203,209.70x = 37,642,630,871.15
  5. Step 5: Solve for x
    x = 37,642,630,871.15/203,209.70
  6. Step 6: Final answer
    x = 185,240.33

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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.