Finding the Fourth Proportional to 268,928.26, 403,141.79 and 91,313.79
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Solution
The fourth proportional to 268,928.26, 403,141.79 and 91,313.79 is: 136,885.59
Step by Step Solution
- Step 1: Write the proportion equation
268,928.26 : 403,141.79 = 91,313.79 : x - Step 2: Convert to fraction form
268,928.26/403,141.79 = 91,313.79/x - Step 3: Cross multiply
268,928.26x = 403,141.79 × 91,313.79 - Step 4: Simplify right side
268,928.26x = 36,812,403,468.79 - Step 5: Solve for x
x = 36,812,403,468.79/268,928.26 - Step 6: Final answer
x = 136,885.59
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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.