Finding the Fourth Proportional to 291,203.60, 401,866.92 and 163,878.80
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Solution
The fourth proportional to 291,203.60, 401,866.92 and 163,878.80 is: 226,156.09
Step by Step Solution
- Step 1: Write the proportion equation
291,203.60 : 401,866.92 = 163,878.80 : x - Step 2: Convert to fraction form
291,203.60/401,866.92 = 163,878.80/x - Step 3: Cross multiply
291,203.60x = 401,866.92 × 163,878.80 - Step 4: Simplify right side
291,203.60x = 65,857,468,609.30 - Step 5: Solve for x
x = 65,857,468,609.30/291,203.60 - Step 6: Final answer
x = 226,156.09
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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.