Finding the Fourth Proportional to 400,225.10, 552,310.45 and 218,936.99
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Solution
The fourth proportional to 400,225.10, 552,310.45 and 218,936.99 is: 302,132.94
Step by Step Solution
- Step 1: Write the proportion equation
400,225.10 : 552,310.45 = 218,936.99 : x - Step 2: Convert to fraction form
400,225.10/552,310.45 = 218,936.99/x - Step 3: Cross multiply
400,225.10x = 552,310.45 × 218,936.99 - Step 4: Simplify right side
400,225.10x = 120,921,187,468.55 - Step 5: Solve for x
x = 120,921,187,468.55/400,225.10 - Step 6: Final answer
x = 302,132.94
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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.