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Finding the Fourth Proportional to 509,889.60, 764,677.60 and 168,269.76

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Solution

The fourth proportional to 509,889.60, 764,677.60 and 168,269.76 is: 252,352.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,889.60 : 764,677.60 = 168,269.76 : x
  2. Step 2: Convert to fraction form
    509,889.60/764,677.60 = 168,269.76/x
  3. Step 3: Cross multiply
    509,889.60x = 764,677.60 × 168,269.76
  4. Step 4: Simplify right side
    509,889.60x = 128,672,116,229.38
  5. Step 5: Solve for x
    x = 128,672,116,229.38/509,889.60
  6. Step 6: Final answer
    x = 252,352.89

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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.