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Finding the Fourth Proportional to 328,853.40, 493,293.82 and 104,208.86

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Solution

The fourth proportional to 328,853.40, 493,293.82 and 104,208.86 is: 156,317.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,853.40 : 493,293.82 = 104,208.86 : x
  2. Step 2: Convert to fraction form
    328,853.40/493,293.82 = 104,208.86/x
  3. Step 3: Cross multiply
    328,853.40x = 493,293.82 × 104,208.86
  4. Step 4: Simplify right side
    328,853.40x = 51,405,586,366.72
  5. Step 5: Solve for x
    x = 51,405,586,366.72/328,853.40
  6. Step 6: Final answer
    x = 156,317.64

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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.