Finding the Fourth Proportional to 328,129.80, 492,194.70 and 275,641.80
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Solution
The fourth proportional to 328,129.80, 492,194.70 and 275,641.80 is: 413,462.70
Step by Step Solution
- Step 1: Write the proportion equation
328,129.80 : 492,194.70 = 275,641.80 : x - Step 2: Convert to fraction form
328,129.80/492,194.70 = 275,641.80/x - Step 3: Cross multiply
328,129.80x = 492,194.70 × 275,641.80 - Step 4: Simplify right side
328,129.80x = 135,669,433,058.46 - Step 5: Solve for x
x = 135,669,433,058.46/328,129.80 - Step 6: Final answer
x = 413,462.70
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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.