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Finding the Fourth Proportional to 223,203.60, 334,805.40 and 129,891.60

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Solution

The fourth proportional to 223,203.60, 334,805.40 and 129,891.60 is: 194,837.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,203.60 : 334,805.40 = 129,891.60 : x
  2. Step 2: Convert to fraction form
    223,203.60/334,805.40 = 129,891.60/x
  3. Step 3: Cross multiply
    223,203.60x = 334,805.40 × 129,891.60
  4. Step 4: Simplify right side
    223,203.60x = 43,488,409,094.64
  5. Step 5: Solve for x
    x = 43,488,409,094.64/223,203.60
  6. Step 6: Final answer
    x = 194,837.40

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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.