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Finding the Fourth Proportional to 319,624.15, 479,383.86 and 130,076.86

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Solution

The fourth proportional to 319,624.15, 479,383.86 and 130,076.86 is: 195,093.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,624.15 : 479,383.86 = 130,076.86 : x
  2. Step 2: Convert to fraction form
    319,624.15/479,383.86 = 130,076.86/x
  3. Step 3: Cross multiply
    319,624.15x = 479,383.86 × 130,076.86
  4. Step 4: Simplify right side
    319,624.15x = 62,356,747,243.48
  5. Step 5: Solve for x
    x = 62,356,747,243.48/319,624.15
  6. Step 6: Final answer
    x = 195,093.98

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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.