Finding the Fourth Proportional to 292,449.60, 438,292.20 and 211,668.62
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Solution
The fourth proportional to 292,449.60, 438,292.20 and 211,668.62 is: 317,226.31
Step by Step Solution
- Step 1: Write the proportion equation
292,449.60 : 438,292.20 = 211,668.62 : x - Step 2: Convert to fraction form
292,449.60/438,292.20 = 211,668.62/x - Step 3: Cross multiply
292,449.60x = 438,292.20 × 211,668.62 - Step 4: Simplify right side
292,449.60x = 92,772,706,226.49 - Step 5: Solve for x
x = 92,772,706,226.49/292,449.60 - Step 6: Final answer
x = 317,226.31
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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.