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Finding the Fourth Proportional to 166,645.89, 249,969.38 and 40,285.89

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Solution

The fourth proportional to 166,645.89, 249,969.38 and 40,285.89 is: 60,428.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,645.89 : 249,969.38 = 40,285.89 : x
  2. Step 2: Convert to fraction form
    166,645.89/249,969.38 = 40,285.89/x
  3. Step 3: Cross multiply
    166,645.89x = 249,969.38 × 40,285.89
  4. Step 4: Simplify right side
    166,645.89x = 10,070,238,744.62
  5. Step 5: Solve for x
    x = 10,070,238,744.62/166,645.89
  6. Step 6: Final answer
    x = 60,428.97

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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.