Finding the Fourth Proportional to 329,107.80, 493,661.70 and 107,491.80
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Solution
The fourth proportional to 329,107.80, 493,661.70 and 107,491.80 is: 161,237.70
Step by Step Solution
- Step 1: Write the proportion equation
329,107.80 : 493,661.70 = 107,491.80 : x - Step 2: Convert to fraction form
329,107.80/493,661.70 = 107,491.80/x - Step 3: Cross multiply
329,107.80x = 493,661.70 × 107,491.80 - Step 4: Simplify right side
329,107.80x = 53,064,584,724.06 - Step 5: Solve for x
x = 53,064,584,724.06/329,107.80 - Step 6: Final answer
x = 161,237.70
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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.