Finding the Fourth Proportional to 396,855.05, 547,644.38 and 235,705.95
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Solution
The fourth proportional to 396,855.05, 547,644.38 and 235,705.95 is: 325,264.95
Step by Step Solution
- Step 1: Write the proportion equation
396,855.05 : 547,644.38 = 235,705.95 : x - Step 2: Convert to fraction form
396,855.05/547,644.38 = 235,705.95/x - Step 3: Cross multiply
396,855.05x = 547,644.38 × 235,705.95 - Step 4: Simplify right side
396,855.05x = 129,083,037,671.53 - Step 5: Solve for x
x = 129,083,037,671.53/396,855.05 - Step 6: Final answer
x = 325,264.95
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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.