Finding the Fourth Proportional to 438,772.70, 657,721.65 and 201,701.90
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Solution
The fourth proportional to 438,772.70, 657,721.65 and 201,701.90 is: 302,351.78
Step by Step Solution
- Step 1: Write the proportion equation
438,772.70 : 657,721.65 = 201,701.90 : x - Step 2: Convert to fraction form
438,772.70/657,721.65 = 201,701.90/x - Step 3: Cross multiply
438,772.70x = 657,721.65 × 201,701.90 - Step 4: Simplify right side
438,772.70x = 132,663,706,476.14 - Step 5: Solve for x
x = 132,663,706,476.14/438,772.70 - Step 6: Final answer
x = 302,351.78
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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.