Finding the Fourth Proportional to 210,794.62, 316,192.47 and 86,135.62
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Solution
The fourth proportional to 210,794.62, 316,192.47 and 86,135.62 is: 129,203.65
Step by Step Solution
- Step 1: Write the proportion equation
210,794.62 : 316,192.47 = 86,135.62 : x - Step 2: Convert to fraction form
210,794.62/316,192.47 = 86,135.62/x - Step 3: Cross multiply
210,794.62x = 316,192.47 × 86,135.62 - Step 4: Simplify right side
210,794.62x = 27,235,434,442.78 - Step 5: Solve for x
x = 27,235,434,442.78/210,794.62 - Step 6: Final answer
x = 129,203.65
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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.