Finding the Fourth Proportional to 320,537.20, 442,202.32 and 193,140.40
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Solution
The fourth proportional to 320,537.20, 442,202.32 and 193,140.40 is: 266,449.99
Step by Step Solution
- Step 1: Write the proportion equation
320,537.20 : 442,202.32 = 193,140.40 : x - Step 2: Convert to fraction form
320,537.20/442,202.32 = 193,140.40/x - Step 3: Cross multiply
320,537.20x = 442,202.32 × 193,140.40 - Step 4: Simplify right side
320,537.20x = 85,407,132,965.73 - Step 5: Solve for x
x = 85,407,132,965.73/320,537.20 - Step 6: Final answer
x = 266,449.99
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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.