Finding the Fourth Proportional to 371,037.23, 512,031.54 and 209,888.84
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Solution
The fourth proportional to 371,037.23, 512,031.54 and 209,888.84 is: 289,646.69
Step by Step Solution
- Step 1: Write the proportion equation
371,037.23 : 512,031.54 = 209,888.84 : x - Step 2: Convert to fraction form
371,037.23/512,031.54 = 209,888.84/x - Step 3: Cross multiply
371,037.23x = 512,031.54 × 209,888.84 - Step 4: Simplify right side
371,037.23x = 107,469,705,974.01 - Step 5: Solve for x
x = 107,469,705,974.01/371,037.23 - Step 6: Final answer
x = 289,646.69
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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.