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Finding the Fourth Proportional to 223,399.20, 335,098.80 and 213,031.20

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Solution

The fourth proportional to 223,399.20, 335,098.80 and 213,031.20 is: 319,546.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,399.20 : 335,098.80 = 213,031.20 : x
  2. Step 2: Convert to fraction form
    223,399.20/335,098.80 = 213,031.20/x
  3. Step 3: Cross multiply
    223,399.20x = 335,098.80 × 213,031.20
  4. Step 4: Simplify right side
    223,399.20x = 71,386,499,482.56
  5. Step 5: Solve for x
    x = 71,386,499,482.56/223,399.20
  6. Step 6: Final answer
    x = 319,546.80

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.