Finding the Fourth Proportional to 438,547.60, 657,821.40 and 202,351.60
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Solution
The fourth proportional to 438,547.60, 657,821.40 and 202,351.60 is: 303,527.40
Step by Step Solution
- Step 1: Write the proportion equation
438,547.60 : 657,821.40 = 202,351.60 : x - Step 2: Convert to fraction form
438,547.60/657,821.40 = 202,351.60/x - Step 3: Cross multiply
438,547.60x = 657,821.40 × 202,351.60 - Step 4: Simplify right side
438,547.60x = 133,111,212,804.24 - Step 5: Solve for x
x = 133,111,212,804.24/438,547.60 - Step 6: Final answer
x = 303,527.40
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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.