Finding the Fourth Proportional to 215,479.70, 323,219.55 and 122,167.70
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Solution
The fourth proportional to 215,479.70, 323,219.55 and 122,167.70 is: 183,251.55
Step by Step Solution
- Step 1: Write the proportion equation
215,479.70 : 323,219.55 = 122,167.70 : x - Step 2: Convert to fraction form
215,479.70/323,219.55 = 122,167.70/x - Step 3: Cross multiply
215,479.70x = 323,219.55 × 122,167.70 - Step 4: Simplify right side
215,479.70x = 39,486,989,018.54 - Step 5: Solve for x
x = 39,486,989,018.54/215,479.70 - Step 6: Final answer
x = 183,251.55
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.