Finding the Fourth Proportional to 651,381.09, 977,164.38 and 202,140.78
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Solution
The fourth proportional to 651,381.09, 977,164.38 and 202,140.78 is: 303,239.95
Step by Step Solution
- Step 1: Write the proportion equation
651,381.09 : 977,164.38 = 202,140.78 : x - Step 2: Convert to fraction form
651,381.09/977,164.38 = 202,140.78/x - Step 3: Cross multiply
651,381.09x = 977,164.38 × 202,140.78 - Step 4: Simplify right side
651,381.09x = 197,524,769,961.42 - Step 5: Solve for x
x = 197,524,769,961.42/651,381.09 - Step 6: Final answer
x = 303,239.95
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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.