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Finding the Fourth Proportional to 222,326.72, 306,987.80 and 205,324.72

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Solution

The fourth proportional to 222,326.72, 306,987.80 and 205,324.72 is: 283,511.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,326.72 : 306,987.80 = 205,324.72 : x
  2. Step 2: Convert to fraction form
    222,326.72/306,987.80 = 205,324.72/x
  3. Step 3: Cross multiply
    222,326.72x = 306,987.80 × 205,324.72
  4. Step 4: Simplify right side
    222,326.72x = 63,032,184,078.42
  5. Step 5: Solve for x
    x = 63,032,184,078.42/222,326.72
  6. Step 6: Final answer
    x = 283,511.51

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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.