Finding the Fourth Proportional to 147,984.91, 221,908.35 and 76,888.44
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Solution
The fourth proportional to 147,984.91, 221,908.35 and 76,888.44 is: 115,296.79
Step by Step Solution
- Step 1: Write the proportion equation
147,984.91 : 221,908.35 = 76,888.44 : x - Step 2: Convert to fraction form
147,984.91/221,908.35 = 76,888.44/x - Step 3: Cross multiply
147,984.91x = 221,908.35 × 76,888.44 - Step 4: Simplify right side
147,984.91x = 17,062,185,744.93 - Step 5: Solve for x
x = 17,062,185,744.93/147,984.91 - Step 6: Final answer
x = 115,296.79
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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.