Finding the Fourth Proportional to 438,614.13, 657,944.70 and 139,117.44
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Solution
The fourth proportional to 438,614.13, 657,944.70 and 139,117.44 is: 208,683.62
Step by Step Solution
- Step 1: Write the proportion equation
438,614.13 : 657,944.70 = 139,117.44 : x - Step 2: Convert to fraction form
438,614.13/657,944.70 = 139,117.44/x - Step 3: Cross multiply
438,614.13x = 657,944.70 × 139,117.44 - Step 4: Simplify right side
438,614.13x = 91,531,582,325.57 - Step 5: Solve for x
x = 91,531,582,325.57/438,614.13 - Step 6: Final answer
x = 208,683.62
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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.