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Finding the Fourth Proportional to 301,279.62, 451,917.46 and 76,638.13

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Solution

The fourth proportional to 301,279.62, 451,917.46 and 76,638.13 is: 114,956.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,279.62 : 451,917.46 = 76,638.13 : x
  2. Step 2: Convert to fraction form
    301,279.62/451,917.46 = 76,638.13/x
  3. Step 3: Cross multiply
    301,279.62x = 451,917.46 × 76,638.13
  4. Step 4: Simplify right side
    301,279.62x = 34,634,109,048.75
  5. Step 5: Solve for x
    x = 34,634,109,048.75/301,279.62
  6. Step 6: Final answer
    x = 114,956.69

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1.5x scale

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.