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Finding the Fourth Proportional to 361,940.22, 499,397.15 and 208,945.19

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Solution

The fourth proportional to 361,940.22, 499,397.15 and 208,945.19 is: 288,297.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,940.22 : 499,397.15 = 208,945.19 : x
  2. Step 2: Convert to fraction form
    361,940.22/499,397.15 = 208,945.19/x
  3. Step 3: Cross multiply
    361,940.22x = 499,397.15 × 208,945.19
  4. Step 4: Simplify right side
    361,940.22x = 104,346,634,163.06
  5. Step 5: Solve for x
    x = 104,346,634,163.06/361,940.22
  6. Step 6: Final answer
    x = 288,297.98

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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.