Finding the Fourth Proportional to 405,847.13, 560,067.21 and 233,702.28
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Solution
The fourth proportional to 405,847.13, 560,067.21 and 233,702.28 is: 322,508.10
Step by Step Solution
- Step 1: Write the proportion equation
405,847.13 : 560,067.21 = 233,702.28 : x - Step 2: Convert to fraction form
405,847.13/560,067.21 = 233,702.28/x - Step 3: Cross multiply
405,847.13x = 560,067.21 × 233,702.28 - Step 4: Simplify right side
405,847.13x = 130,888,983,930.24 - Step 5: Solve for x
x = 130,888,983,930.24/405,847.13 - Step 6: Final answer
x = 322,508.10
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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.