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Finding the Fourth Proportional to 223,716.67, 308,729.05 and 123,114.67

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Solution

The fourth proportional to 223,716.67, 308,729.05 and 123,114.67 is: 169,898.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,716.67 : 308,729.05 = 123,114.67 : x
  2. Step 2: Convert to fraction form
    223,716.67/308,729.05 = 123,114.67/x
  3. Step 3: Cross multiply
    223,716.67x = 308,729.05 × 123,114.67
  4. Step 4: Simplify right side
    223,716.67x = 38,009,074,030.55
  5. Step 5: Solve for x
    x = 38,009,074,030.55/223,716.67
  6. Step 6: Final answer
    x = 169,898.27

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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.