Finding the Fourth Proportional to 387,291.74, 534,451.93 and 215,205.26
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Solution
The fourth proportional to 387,291.74, 534,451.93 and 215,205.26 is: 296,977.32
Step by Step Solution
- Step 1: Write the proportion equation
387,291.74 : 534,451.93 = 215,205.26 : x - Step 2: Convert to fraction form
387,291.74/534,451.93 = 215,205.26/x - Step 3: Cross multiply
387,291.74x = 534,451.93 × 215,205.26 - Step 4: Simplify right side
387,291.74x = 115,016,863,342.88 - Step 5: Solve for x
x = 115,016,863,342.88/387,291.74 - Step 6: Final answer
x = 296,977.32
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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.