Finding the Fourth Proportional to 153,011.75, 211,181.26 and 127,477.62
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Solution
The fourth proportional to 153,011.75, 211,181.26 and 127,477.62 is: 175,939.99
Step by Step Solution
- Step 1: Write the proportion equation
153,011.75 : 211,181.26 = 127,477.62 : x - Step 2: Convert to fraction form
153,011.75/211,181.26 = 127,477.62/x - Step 3: Cross multiply
153,011.75x = 211,181.26 × 127,477.62 - Step 4: Simplify right side
153,011.75x = 26,920,884,413.40 - Step 5: Solve for x
x = 26,920,884,413.40/153,011.75 - Step 6: Final answer
x = 175,939.99
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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.