Finding the Fourth Proportional to 268,959.68, 403,322.87 and 91,419.02
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Solution
The fourth proportional to 268,959.68, 403,322.87 and 91,419.02 is: 137,088.88
Step by Step Solution
- Step 1: Write the proportion equation
268,959.68 : 403,322.87 = 91,419.02 : x - Step 2: Convert to fraction form
268,959.68/403,322.87 = 91,419.02/x - Step 3: Cross multiply
268,959.68x = 403,322.87 × 91,419.02 - Step 4: Simplify right side
268,959.68x = 36,871,381,061.89 - Step 5: Solve for x
x = 36,871,381,061.89/268,959.68 - Step 6: Final answer
x = 137,088.88
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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.