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Finding the Fourth Proportional to 329,313.25, 493,971.09 and 79,995.25

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Solution

The fourth proportional to 329,313.25, 493,971.09 and 79,995.25 is: 119,993.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    329,313.25 : 493,971.09 = 79,995.25 : x
  2. Step 2: Convert to fraction form
    329,313.25/493,971.09 = 79,995.25/x
  3. Step 3: Cross multiply
    329,313.25x = 493,971.09 × 79,995.25
  4. Step 4: Simplify right side
    329,313.25x = 39,515,340,837.32
  5. Step 5: Solve for x
    x = 39,515,340,837.32/329,313.25
  6. Step 6: Final answer
    x = 119,993.17

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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.