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Finding the Fourth Proportional to 319,903.38, 479,958.71 and 95,265.68

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Solution

The fourth proportional to 319,903.38, 479,958.71 and 95,265.68 is: 142,929.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,903.38 : 479,958.71 = 95,265.68 : x
  2. Step 2: Convert to fraction form
    319,903.38/479,958.71 = 95,265.68/x
  3. Step 3: Cross multiply
    319,903.38x = 479,958.71 × 95,265.68
  4. Step 4: Simplify right side
    319,903.38x = 45,723,590,003.95
  5. Step 5: Solve for x
    x = 45,723,590,003.95/319,903.38
  6. Step 6: Final answer
    x = 142,929.37

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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.