Finding the Fourth Proportional to 266,567.73, 399,845.79 and 86,658.96
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Solution
The fourth proportional to 266,567.73, 399,845.79 and 86,658.96 is: 129,986.55
Step by Step Solution
- Step 1: Write the proportion equation
266,567.73 : 399,845.79 = 86,658.96 : x - Step 2: Convert to fraction form
266,567.73/399,845.79 = 86,658.96/x - Step 3: Cross multiply
266,567.73x = 399,845.79 × 86,658.96 - Step 4: Simplify right side
266,567.73x = 34,650,220,321.78 - Step 5: Solve for x
x = 34,650,220,321.78/266,567.73 - Step 6: Final answer
x = 129,986.55
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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.