Finding the Fourth Proportional to 542,728.92, 814,132.35 and 143,365.80
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Solution
The fourth proportional to 542,728.92, 814,132.35 and 143,365.80 is: 215,058.99
Step by Step Solution
- Step 1: Write the proportion equation
542,728.92 : 814,132.35 = 143,365.80 : x - Step 2: Convert to fraction form
542,728.92/814,132.35 = 143,365.80/x - Step 3: Cross multiply
542,728.92x = 814,132.35 × 143,365.80 - Step 4: Simplify right side
542,728.92x = 116,718,735,663.63 - Step 5: Solve for x
x = 116,718,735,663.63/542,728.92 - Step 6: Final answer
x = 215,058.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.