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Finding the Fourth Proportional to 303,991.80, 455,878.34 and 104,260.38

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Solution

The fourth proportional to 303,991.80, 455,878.34 and 104,260.38 is: 156,353.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,991.80 : 455,878.34 = 104,260.38 : x
  2. Step 2: Convert to fraction form
    303,991.80/455,878.34 = 104,260.38/x
  3. Step 3: Cross multiply
    303,991.80x = 455,878.34 × 104,260.38
  4. Step 4: Simplify right side
    303,991.80x = 47,530,048,962.17
  5. Step 5: Solve for x
    x = 47,530,048,962.17/303,991.80
  6. Step 6: Final answer
    x = 156,353.06

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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.