Finding the Fourth Proportional to 331,646.97, 457,531.00 and 216,726.15
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Solution
The fourth proportional to 331,646.97, 457,531.00 and 216,726.15 is: 298,989.40
Step by Step Solution
- Step 1: Write the proportion equation
331,646.97 : 457,531.00 = 216,726.15 : x - Step 2: Convert to fraction form
331,646.97/457,531.00 = 216,726.15/x - Step 3: Cross multiply
331,646.97x = 457,531.00 × 216,726.15 - Step 4: Simplify right side
331,646.97x = 99,158,930,735.96 - Step 5: Solve for x
x = 99,158,930,735.96/331,646.97 - Step 6: Final answer
x = 298,989.40
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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.