Finding the Fourth Proportional to 284,110.62, 392,220.05 and 207,543.75
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Solution
The fourth proportional to 284,110.62, 392,220.05 and 207,543.75 is: 286,518.05
Step by Step Solution
- Step 1: Write the proportion equation
284,110.62 : 392,220.05 = 207,543.75 : x - Step 2: Convert to fraction form
284,110.62/392,220.05 = 207,543.75/x - Step 3: Cross multiply
284,110.62x = 392,220.05 × 207,543.75 - Step 4: Simplify right side
284,110.62x = 81,402,820,002.19 - Step 5: Solve for x
x = 81,402,820,002.19/284,110.62 - Step 6: Final answer
x = 286,518.05
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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.