Finding the Fourth Proportional to 518,201.78, 777,302.67 and 202,437.26
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Solution
The fourth proportional to 518,201.78, 777,302.67 and 202,437.26 is: 303,655.89
Step by Step Solution
- Step 1: Write the proportion equation
518,201.78 : 777,302.67 = 202,437.26 : x - Step 2: Convert to fraction form
518,201.78/777,302.67 = 202,437.26/x - Step 3: Cross multiply
518,201.78x = 777,302.67 × 202,437.26 - Step 4: Simplify right side
518,201.78x = 157,355,022,705.48 - Step 5: Solve for x
x = 157,355,022,705.48/518,201.78 - Step 6: Final answer
x = 303,655.89
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Double scale
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Similar ratio
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1.5x scale
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.