Finding the Fourth Proportional to 318,193.45, 478,164.97 and 297,387.79
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Solution
The fourth proportional to 318,193.45, 478,164.97 and 297,387.79 is: 446,899.28
Step by Step Solution
- Step 1: Write the proportion equation
318,193.45 : 478,164.97 = 297,387.79 : x - Step 2: Convert to fraction form
318,193.45/478,164.97 = 297,387.79/x - Step 3: Cross multiply
318,193.45x = 478,164.97 × 297,387.79 - Step 4: Simplify right side
318,193.45x = 142,200,422,860.04 - Step 5: Solve for x
x = 142,200,422,860.04/318,193.45 - Step 6: Final answer
x = 446,899.28
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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.