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Finding the Fourth Proportional to 229,956.89, 345,157.79 and 165,980.99

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Solution

The fourth proportional to 229,956.89, 345,157.79 and 165,980.99 is: 249,132.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,956.89 : 345,157.79 = 165,980.99 : x
  2. Step 2: Convert to fraction form
    229,956.89/345,157.79 = 165,980.99/x
  3. Step 3: Cross multiply
    229,956.89x = 345,157.79 × 165,980.99
  4. Step 4: Simplify right side
    229,956.89x = 57,289,631,690.41
  5. Step 5: Solve for x
    x = 57,289,631,690.41/229,956.89
  6. Step 6: Final answer
    x = 249,132.05

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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.