Finding the Fourth Proportional to 270,607.23, 405,946.71 and 99,805.95
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Solution
The fourth proportional to 270,607.23, 405,946.71 and 99,805.95 is: 149,722.15
Step by Step Solution
- Step 1: Write the proportion equation
270,607.23 : 405,946.71 = 99,805.95 : x - Step 2: Convert to fraction form
270,607.23/405,946.71 = 99,805.95/x - Step 3: Cross multiply
270,607.23x = 405,946.71 × 99,805.95 - Step 4: Simplify right side
270,607.23x = 40,515,897,040.92 - Step 5: Solve for x
x = 40,515,897,040.92/270,607.23 - Step 6: Final answer
x = 149,722.15
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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.