Finding the Fourth Proportional to 210,872.04, 291,003.08 and 115,379.12
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Solution
The fourth proportional to 210,872.04, 291,003.08 and 115,379.12 is: 159,222.99
Step by Step Solution
- Step 1: Write the proportion equation
210,872.04 : 291,003.08 = 115,379.12 : x - Step 2: Convert to fraction form
210,872.04/291,003.08 = 115,379.12/x - Step 3: Cross multiply
210,872.04x = 291,003.08 × 115,379.12 - Step 4: Simplify right side
210,872.04x = 33,575,677,255.78 - Step 5: Solve for x
x = 33,575,677,255.78/210,872.04 - Step 6: Final answer
x = 159,222.99
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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.