Finding the Fourth Proportional to 261,393.60, 392,090.40 and 202,271.70
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Solution
The fourth proportional to 261,393.60, 392,090.40 and 202,271.70 is: 303,407.55
Step by Step Solution
- Step 1: Write the proportion equation
261,393.60 : 392,090.40 = 202,271.70 : x - Step 2: Convert to fraction form
261,393.60/392,090.40 = 202,271.70/x - Step 3: Cross multiply
261,393.60x = 392,090.40 × 202,271.70 - Step 4: Simplify right side
261,393.60x = 79,308,791,761.68 - Step 5: Solve for x
x = 79,308,791,761.68/261,393.60 - Step 6: Final answer
x = 303,407.55
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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.