Finding the Fourth Proportional to 268,952.40, 403,282.80 and 91,387.44
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Solution
The fourth proportional to 268,952.40, 403,282.80 and 91,387.44 is: 137,031.62
Step by Step Solution
- Step 1: Write the proportion equation
268,952.40 : 403,282.80 = 91,387.44 : x - Step 2: Convert to fraction form
268,952.40/403,282.80 = 91,387.44/x - Step 3: Cross multiply
268,952.40x = 403,282.80 × 91,387.44 - Step 4: Simplify right side
268,952.40x = 36,854,982,688.03 - Step 5: Solve for x
x = 36,854,982,688.03/268,952.40 - Step 6: Final answer
x = 137,031.62
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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.