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Finding the Fourth Proportional to 319,350.10, 479,340.31 and 169,589.96

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Solution

The fourth proportional to 319,350.10, 479,340.31 and 169,589.96 is: 254,552.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,350.10 : 479,340.31 = 169,589.96 : x
  2. Step 2: Convert to fraction form
    319,350.10/479,340.31 = 169,589.96/x
  3. Step 3: Cross multiply
    319,350.10x = 479,340.31 × 169,589.96
  4. Step 4: Simplify right side
    319,350.10x = 81,291,303,999.29
  5. Step 5: Solve for x
    x = 81,291,303,999.29/319,350.10
  6. Step 6: Final answer
    x = 254,552.30

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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.