Finding the Fourth Proportional to 438,110.48, 657,230.20 and 138,523.28
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Solution
The fourth proportional to 438,110.48, 657,230.20 and 138,523.28 is: 207,805.31
Step by Step Solution
- Step 1: Write the proportion equation
438,110.48 : 657,230.20 = 138,523.28 : x - Step 2: Convert to fraction form
438,110.48/657,230.20 = 138,523.28/x - Step 3: Cross multiply
438,110.48x = 657,230.20 × 138,523.28 - Step 4: Simplify right side
438,110.48x = 91,041,683,019.06 - Step 5: Solve for x
x = 91,041,683,019.06/438,110.48 - Step 6: Final answer
x = 207,805.31
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.