Finding the Fourth Proportional to 312,088.04, 431,122.40 and 248,344.28
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Solution
The fourth proportional to 312,088.04, 431,122.40 and 248,344.28 is: 343,065.95
Step by Step Solution
- Step 1: Write the proportion equation
312,088.04 : 431,122.40 = 248,344.28 : x - Step 2: Convert to fraction form
312,088.04/431,122.40 = 248,344.28/x - Step 3: Cross multiply
312,088.04x = 431,122.40 × 248,344.28 - Step 4: Simplify right side
312,088.04x = 107,066,778,622.54 - Step 5: Solve for x
x = 107,066,778,622.54/312,088.04 - Step 6: Final answer
x = 343,065.95
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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.