Finding the Fourth Proportional to 372,689.28, 514,304.64 and 202,920.48
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Solution
The fourth proportional to 372,689.28, 514,304.64 and 202,920.48 is: 280,026.69
Step by Step Solution
- Step 1: Write the proportion equation
372,689.28 : 514,304.64 = 202,920.48 : x - Step 2: Convert to fraction form
372,689.28/514,304.64 = 202,920.48/x - Step 3: Cross multiply
372,689.28x = 514,304.64 × 202,920.48 - Step 4: Simplify right side
372,689.28x = 104,362,944,415.03 - Step 5: Solve for x
x = 104,362,944,415.03/372,689.28 - Step 6: Final answer
x = 280,026.69
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.