Finding the Fourth Proportional to 284,210.49, 392,211.18 and 155,149.05
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Solution
The fourth proportional to 284,210.49, 392,211.18 and 155,149.05 is: 214,106.07
Step by Step Solution
- Step 1: Write the proportion equation
284,210.49 : 392,211.18 = 155,149.05 : x - Step 2: Convert to fraction form
284,210.49/392,211.18 = 155,149.05/x - Step 3: Cross multiply
284,210.49x = 392,211.18 × 155,149.05 - Step 4: Simplify right side
284,210.49x = 60,851,191,267.46 - Step 5: Solve for x
x = 60,851,191,267.46/284,210.49 - Step 6: Final answer
x = 214,106.07
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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.