Finding the Fourth Proportional to 287,537.10, 431,356.86 and 97,986.96
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Solution
The fourth proportional to 287,537.10, 431,356.86 and 97,986.96 is: 146,997.89
Step by Step Solution
- Step 1: Write the proportion equation
287,537.10 : 431,356.86 = 97,986.96 : x - Step 2: Convert to fraction form
287,537.10/431,356.86 = 97,986.96/x - Step 3: Cross multiply
287,537.10x = 431,356.86 × 97,986.96 - Step 4: Simplify right side
287,537.10x = 42,267,347,386.55 - Step 5: Solve for x
x = 42,267,347,386.55/287,537.10 - Step 6: Final answer
x = 146,997.89
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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.