Finding the Fourth Proportional to 299,779.26, 413,690.40 and 163,810.31
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Solution
The fourth proportional to 299,779.26, 413,690.40 and 163,810.31 is: 226,055.50
Step by Step Solution
- Step 1: Write the proportion equation
299,779.26 : 413,690.40 = 163,810.31 : x - Step 2: Convert to fraction form
299,779.26/413,690.40 = 163,810.31/x - Step 3: Cross multiply
299,779.26x = 413,690.40 × 163,810.31 - Step 4: Simplify right side
299,779.26x = 67,766,750,599.57 - Step 5: Solve for x
x = 67,766,750,599.57/299,779.26 - Step 6: Final answer
x = 226,055.50
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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.