Finding the Fourth Proportional to 415,567.62, 623,386.79 and 131,182.09
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Solution
The fourth proportional to 415,567.62, 623,386.79 and 131,182.09 is: 196,784.29
Step by Step Solution
- Step 1: Write the proportion equation
415,567.62 : 623,386.79 = 131,182.09 : x - Step 2: Convert to fraction form
415,567.62/623,386.79 = 131,182.09/x - Step 3: Cross multiply
415,567.62x = 623,386.79 × 131,182.09 - Step 4: Simplify right side
415,567.62x = 81,777,181,006.05 - Step 5: Solve for x
x = 81,777,181,006.05/415,567.62 - Step 6: Final answer
x = 196,784.29
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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.