Finding the Fourth Proportional to 220,516.12, 304,182.33 and 138,713.99
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Solution
The fourth proportional to 220,516.12, 304,182.33 and 138,713.99 is: 191,343.59
Step by Step Solution
- Step 1: Write the proportion equation
220,516.12 : 304,182.33 = 138,713.99 : x - Step 2: Convert to fraction form
220,516.12/304,182.33 = 138,713.99/x - Step 3: Cross multiply
220,516.12x = 304,182.33 × 138,713.99 - Step 4: Simplify right side
220,516.12x = 42,194,344,681.80 - Step 5: Solve for x
x = 42,194,344,681.80/220,516.12 - Step 6: Final answer
x = 191,343.59
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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.