Finding the Fourth Proportional to 396,662.48, 547,398.24 and 215,376.08
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Solution
The fourth proportional to 396,662.48, 547,398.24 and 215,376.08 is: 297,221.17
Step by Step Solution
- Step 1: Write the proportion equation
396,662.48 : 547,398.24 = 215,376.08 : x - Step 2: Convert to fraction form
396,662.48/547,398.24 = 215,376.08/x - Step 3: Cross multiply
396,662.48x = 547,398.24 × 215,376.08 - Step 4: Simplify right side
396,662.48x = 117,896,487,130.10 - Step 5: Solve for x
x = 117,896,487,130.10/396,662.48 - Step 6: Final answer
x = 297,221.17
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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.