Finding the Fourth Proportional to 402,612.75, 555,612.62 and 221,332.32
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Solution
The fourth proportional to 402,612.75, 555,612.62 and 221,332.32 is: 305,442.46
Step by Step Solution
- Step 1: Write the proportion equation
402,612.75 : 555,612.62 = 221,332.32 : x - Step 2: Convert to fraction form
402,612.75/555,612.62 = 221,332.32/x - Step 3: Cross multiply
402,612.75x = 555,612.62 × 221,332.32 - Step 4: Simplify right side
402,612.75x = 122,975,029,099.22 - Step 5: Solve for x
x = 122,975,029,099.22/402,612.75 - Step 6: Final answer
x = 305,442.46
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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.