Finding the Fourth Proportional to 320,472.96, 442,308.18 and 193,148.70
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Solution
The fourth proportional to 320,472.96, 442,308.18 and 193,148.70 is: 266,578.65
Step by Step Solution
- Step 1: Write the proportion equation
320,472.96 : 442,308.18 = 193,148.70 : x - Step 2: Convert to fraction form
320,472.96/442,308.18 = 193,148.70/x - Step 3: Cross multiply
320,472.96x = 442,308.18 × 193,148.70 - Step 4: Simplify right side
320,472.96x = 85,431,249,966.37 - Step 5: Solve for x
x = 85,431,249,966.37/320,472.96 - Step 6: Final answer
x = 266,578.65
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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.