Finding the Fourth Proportional to 305,231.56, 421,207.86 and 169,271.08
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Solution
The fourth proportional to 305,231.56, 421,207.86 and 169,271.08 is: 233,587.61
Step by Step Solution
- Step 1: Write the proportion equation
305,231.56 : 421,207.86 = 169,271.08 : x - Step 2: Convert to fraction form
305,231.56/421,207.86 = 169,271.08/x - Step 3: Cross multiply
305,231.56x = 421,207.86 × 169,271.08 - Step 4: Simplify right side
305,231.56x = 71,298,309,366.69 - Step 5: Solve for x
x = 71,298,309,366.69/305,231.56 - Step 6: Final answer
x = 233,587.61
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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.