Finding the Fourth Proportional to 328,981.48, 453,994.98 and 178,079.08
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Solution
The fourth proportional to 328,981.48, 453,994.98 and 178,079.08 is: 245,749.42
Step by Step Solution
- Step 1: Write the proportion equation
328,981.48 : 453,994.98 = 178,079.08 : x - Step 2: Convert to fraction form
328,981.48/453,994.98 = 178,079.08/x - Step 3: Cross multiply
328,981.48x = 453,994.98 × 178,079.08 - Step 4: Simplify right side
328,981.48x = 80,847,008,363.02 - Step 5: Solve for x
x = 80,847,008,363.02/328,981.48 - Step 6: Final answer
x = 245,749.42
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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.