Finding the Fourth Proportional to 371,918.50, 513,245.61 and 202,153.54
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Solution
The fourth proportional to 371,918.50, 513,245.61 and 202,153.54 is: 278,970.84
Step by Step Solution
- Step 1: Write the proportion equation
371,918.50 : 513,245.61 = 202,153.54 : x - Step 2: Convert to fraction form
371,918.50/513,245.61 = 202,153.54/x - Step 3: Cross multiply
371,918.50x = 513,245.61 × 202,153.54 - Step 4: Simplify right side
371,918.50x = 103,754,416,950.96 - Step 5: Solve for x
x = 103,754,416,950.96/371,918.50 - Step 6: Final answer
x = 278,970.84
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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.