Finding the Fourth Proportional to 201,549.61, 278,045.40 and 129,952.63
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Solution
The fourth proportional to 201,549.61, 278,045.40 and 129,952.63 is: 179,274.63
Step by Step Solution
- Step 1: Write the proportion equation
201,549.61 : 278,045.40 = 129,952.63 : x - Step 2: Convert to fraction form
201,549.61/278,045.40 = 129,952.63/x - Step 3: Cross multiply
201,549.61x = 278,045.40 × 129,952.63 - Step 4: Simplify right side
201,549.61x = 36,132,730,989.40 - Step 5: Solve for x
x = 36,132,730,989.40/201,549.61 - Step 6: Final answer
x = 179,274.63
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.