Finding the Fourth Proportional to 268,911.96, 403,371.18 and 81,925.08
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Solution
The fourth proportional to 268,911.96, 403,371.18 and 81,925.08 is: 122,888.61
Step by Step Solution
- Step 1: Write the proportion equation
268,911.96 : 403,371.18 = 81,925.08 : x - Step 2: Convert to fraction form
268,911.96/403,371.18 = 81,925.08/x - Step 3: Cross multiply
268,911.96x = 403,371.18 × 81,925.08 - Step 4: Simplify right side
268,911.96x = 33,046,216,191.19 - Step 5: Solve for x
x = 33,046,216,191.19/268,911.96 - Step 6: Final answer
x = 122,888.61
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1.5x scale
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.