Finding the Fourth Proportional to 438,788.40, 657,988.20 and 202,203.60
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Solution
The fourth proportional to 438,788.40, 657,988.20 and 202,203.60 is: 303,215.82
Step by Step Solution
- Step 1: Write the proportion equation
438,788.40 : 657,988.20 = 202,203.60 : x - Step 2: Convert to fraction form
438,788.40/657,988.20 = 202,203.60/x - Step 3: Cross multiply
438,788.40x = 657,988.20 × 202,203.60 - Step 4: Simplify right side
438,788.40x = 133,047,582,797.52 - Step 5: Solve for x
x = 133,047,582,797.52/438,788.40 - Step 6: Final answer
x = 303,215.82
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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.