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Finding the Fourth Proportional to 301,279.68, 451,922.12 and 76,640.34

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Solution

The fourth proportional to 301,279.68, 451,922.12 and 76,640.34 is: 114,961.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,279.68 : 451,922.12 = 76,640.34 : x
  2. Step 2: Convert to fraction form
    301,279.68/451,922.12 = 76,640.34/x
  3. Step 3: Cross multiply
    301,279.68x = 451,922.12 × 76,640.34
  4. Step 4: Simplify right side
    301,279.68x = 34,635,464,930.32
  5. Step 5: Solve for x
    x = 34,635,464,930.32/301,279.68
  6. Step 6: Final answer
    x = 114,961.17

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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.