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Finding the Fourth Proportional to 319,594.56, 479,575.01 and 130,019.94

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Solution

The fourth proportional to 319,594.56, 479,575.01 and 130,019.94 is: 195,104.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,594.56 : 479,575.01 = 130,019.94 : x
  2. Step 2: Convert to fraction form
    319,594.56/479,575.01 = 130,019.94/x
  3. Step 3: Cross multiply
    319,594.56x = 479,575.01 × 130,019.94
  4. Step 4: Simplify right side
    319,594.56x = 62,354,314,025.70
  5. Step 5: Solve for x
    x = 62,354,314,025.70/319,594.56
  6. Step 6: Final answer
    x = 195,104.43

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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.