Finding the Fourth Proportional to 438,717.70, 657,639.15 and 201,646.90
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Solution
The fourth proportional to 438,717.70, 657,639.15 and 201,646.90 is: 302,269.31
Step by Step Solution
- Step 1: Write the proportion equation
438,717.70 : 657,639.15 = 201,646.90 : x - Step 2: Convert to fraction form
438,717.70/657,639.15 = 201,646.90/x - Step 3: Cross multiply
438,717.70x = 657,639.15 × 201,646.90 - Step 4: Simplify right side
438,717.70x = 132,610,895,916.14 - Step 5: Solve for x
x = 132,610,895,916.14/438,717.70 - Step 6: Final answer
x = 302,269.31
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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.