Finding the Fourth Proportional to 320,380.25, 442,090.91 and 177,117.17
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Solution
The fourth proportional to 320,380.25, 442,090.91 and 177,117.17 is: 244,402.99
Step by Step Solution
- Step 1: Write the proportion equation
320,380.25 : 442,090.91 = 177,117.17 : x - Step 2: Convert to fraction form
320,380.25/442,090.91 = 177,117.17/x - Step 3: Cross multiply
320,380.25x = 442,090.91 × 177,117.17 - Step 4: Simplify right side
320,380.25x = 78,301,889,094.26 - Step 5: Solve for x
x = 78,301,889,094.26/320,380.25 - Step 6: Final answer
x = 244,402.99
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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.