Finding the Fourth Proportional to 478,858.20, 718,282.97 and 183,370.20
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Solution
The fourth proportional to 478,858.20, 718,282.97 and 183,370.20 is: 275,053.64
Step by Step Solution
- Step 1: Write the proportion equation
478,858.20 : 718,282.97 = 183,370.20 : x - Step 2: Convert to fraction form
478,858.20/718,282.97 = 183,370.20/x - Step 3: Cross multiply
478,858.20x = 718,282.97 × 183,370.20 - Step 4: Simplify right side
478,858.20x = 131,711,688,274.08 - Step 5: Solve for x
x = 131,711,688,274.08/478,858.20 - Step 6: Final answer
x = 275,053.64
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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.