Finding the Fourth Proportional to 320,473.98, 442,309.56 and 193,149.68
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Solution
The fourth proportional to 320,473.98, 442,309.56 and 193,149.68 is: 266,579.99
Step by Step Solution
- Step 1: Write the proportion equation
320,473.98 : 442,309.56 = 193,149.68 : x - Step 2: Convert to fraction form
320,473.98/442,309.56 = 193,149.68/x - Step 3: Cross multiply
320,473.98x = 442,309.56 × 193,149.68 - Step 4: Simplify right side
320,473.98x = 85,431,949,974.94 - Step 5: Solve for x
x = 85,431,949,974.94/320,473.98 - Step 6: Final answer
x = 266,579.99
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1.5x scale
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.