Finding the Fourth Proportional to 328,501.80, 492,752.70 and 141,877.80
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Solution
The fourth proportional to 328,501.80, 492,752.70 and 141,877.80 is: 212,816.70
Step by Step Solution
- Step 1: Write the proportion equation
328,501.80 : 492,752.70 = 141,877.80 : x - Step 2: Convert to fraction form
328,501.80/492,752.70 = 141,877.80/x - Step 3: Cross multiply
328,501.80x = 492,752.70 × 141,877.80 - Step 4: Simplify right side
328,501.80x = 69,910,669,020.06 - Step 5: Solve for x
x = 69,910,669,020.06/328,501.80 - Step 6: Final answer
x = 212,816.70
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1.5x scale
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.