Finding the Fourth Proportional to 372,904.70, 514,569.92 and 209,535.26
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Solution
The fourth proportional to 372,904.70, 514,569.92 and 209,535.26 is: 289,136.98
Step by Step Solution
- Step 1: Write the proportion equation
372,904.70 : 514,569.92 = 209,535.26 : x - Step 2: Convert to fraction form
372,904.70/514,569.92 = 209,535.26/x - Step 3: Cross multiply
372,904.70x = 514,569.92 × 209,535.26 - Step 4: Simplify right side
372,904.70x = 107,820,538,354.85 - Step 5: Solve for x
x = 107,820,538,354.85/372,904.70 - Step 6: Final answer
x = 289,136.98
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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.