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Finding the Fourth Proportional to 223,089.75, 335,252.21 and 217,681.90

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Solution

The fourth proportional to 223,089.75, 335,252.21 and 217,681.90 is: 327,125.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,089.75 : 335,252.21 = 217,681.90 : x
  2. Step 2: Convert to fraction form
    223,089.75/335,252.21 = 217,681.90/x
  3. Step 3: Cross multiply
    223,089.75x = 335,252.21 × 217,681.90
  4. Step 4: Simplify right side
    223,089.75x = 72,978,335,287.33
  5. Step 5: Solve for x
    x = 72,978,335,287.33/223,089.75
  6. Step 6: Final answer
    x = 327,125.45

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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.