Finding the Fourth Proportional to 149,449.80, 206,230.41 and 84,048.40
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Solution
The fourth proportional to 149,449.80, 206,230.41 and 84,048.40 is: 115,980.99
Step by Step Solution
- Step 1: Write the proportion equation
149,449.80 : 206,230.41 = 84,048.40 : x - Step 2: Convert to fraction form
149,449.80/206,230.41 = 84,048.40/x - Step 3: Cross multiply
149,449.80x = 206,230.41 × 84,048.40 - Step 4: Simplify right side
149,449.80x = 17,333,335,991.84 - Step 5: Solve for x
x = 17,333,335,991.84/149,449.80 - Step 6: Final answer
x = 115,980.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.