Finding the Fourth Proportional to 280,236.27, 386,722.85 and 152,913.99
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Solution
The fourth proportional to 280,236.27, 386,722.85 and 152,913.99 is: 211,019.56
Step by Step Solution
- Step 1: Write the proportion equation
280,236.27 : 386,722.85 = 152,913.99 : x - Step 2: Convert to fraction form
280,236.27/386,722.85 = 152,913.99/x - Step 3: Cross multiply
280,236.27x = 386,722.85 × 152,913.99 - Step 4: Simplify right side
280,236.27x = 59,135,333,253.10 - Step 5: Solve for x
x = 59,135,333,253.10/280,236.27 - Step 6: Final answer
x = 211,019.56
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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.