Finding the Fourth Proportional to 328,327.20, 492,490.80 and 117,937.80
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Solution
The fourth proportional to 328,327.20, 492,490.80 and 117,937.80 is: 176,906.70
Step by Step Solution
- Step 1: Write the proportion equation
328,327.20 : 492,490.80 = 117,937.80 : x - Step 2: Convert to fraction form
328,327.20/492,490.80 = 117,937.80/x - Step 3: Cross multiply
328,327.20x = 492,490.80 × 117,937.80 - Step 4: Simplify right side
328,327.20x = 58,083,281,472.24 - Step 5: Solve for x
x = 58,083,281,472.24/328,327.20 - Step 6: Final answer
x = 176,906.70
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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.