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Finding the Fourth Proportional to 521,668.38, 782,437.23 and 166,652.94

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Solution

The fourth proportional to 521,668.38, 782,437.23 and 166,652.94 is: 249,958.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,668.38 : 782,437.23 = 166,652.94 : x
  2. Step 2: Convert to fraction form
    521,668.38/782,437.23 = 166,652.94/x
  3. Step 3: Cross multiply
    521,668.38x = 782,437.23 × 166,652.94
  4. Step 4: Simplify right side
    521,668.38x = 130,395,464,744.96
  5. Step 5: Solve for x
    x = 130,395,464,744.96/521,668.38
  6. Step 6: Final answer
    x = 249,958.54

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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.