Finding the Fourth Proportional to 211,364.90, 291,694.74 and 115,875.62
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Solution
The fourth proportional to 211,364.90, 291,694.74 and 115,875.62 is: 159,914.48
Step by Step Solution
- Step 1: Write the proportion equation
211,364.90 : 291,694.74 = 115,875.62 : x - Step 2: Convert to fraction form
211,364.90/291,694.74 = 115,875.62/x - Step 3: Cross multiply
211,364.90x = 291,694.74 × 115,875.62 - Step 4: Simplify right side
211,364.90x = 33,800,308,848.24 - Step 5: Solve for x
x = 33,800,308,848.24/211,364.90 - Step 6: Final answer
x = 159,914.48
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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.