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Finding the Fourth Proportional to 303,627.30, 455,149.35 and 236,121.90

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Solution

The fourth proportional to 303,627.30, 455,149.35 and 236,121.90 is: 353,956.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,627.30 : 455,149.35 = 236,121.90 : x
  2. Step 2: Convert to fraction form
    303,627.30/455,149.35 = 236,121.90/x
  3. Step 3: Cross multiply
    303,627.30x = 455,149.35 × 236,121.90
  4. Step 4: Simplify right side
    303,627.30x = 107,470,729,305.77
  5. Step 5: Solve for x
    x = 107,470,729,305.77/303,627.30
  6. Step 6: Final answer
    x = 353,956.08

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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.