Finding the Fourth Proportional to 320,589.92, 442,427.11 and 177,347.49
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Solution
The fourth proportional to 320,589.92, 442,427.11 and 177,347.49 is: 244,746.74
Step by Step Solution
- Step 1: Write the proportion equation
320,589.92 : 442,427.11 = 177,347.49 : x - Step 2: Convert to fraction form
320,589.92/442,427.11 = 177,347.49/x - Step 3: Cross multiply
320,589.92x = 442,427.11 × 177,347.49 - Step 4: Simplify right side
320,589.92x = 78,463,337,023.09 - Step 5: Solve for x
x = 78,463,337,023.09/320,589.92 - Step 6: Final answer
x = 244,746.74
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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.