Finding the Fourth Proportional to 438,721.70, 657,645.15 and 201,650.90
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Solution
The fourth proportional to 438,721.70, 657,645.15 and 201,650.90 is: 302,275.31
Step by Step Solution
- Step 1: Write the proportion equation
438,721.70 : 657,645.15 = 201,650.90 : x - Step 2: Convert to fraction form
438,721.70/657,645.15 = 201,650.90/x - Step 3: Cross multiply
438,721.70x = 657,645.15 × 201,650.90 - Step 4: Simplify right side
438,721.70x = 132,614,736,378.14 - Step 5: Solve for x
x = 132,614,736,378.14/438,721.70 - Step 6: Final answer
x = 302,275.31
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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.