Finding the Fourth Proportional to 210,549.12, 290,556.09 and 115,054.08
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Solution
The fourth proportional to 210,549.12, 290,556.09 and 115,054.08 is: 158,773.70
Step by Step Solution
- Step 1: Write the proportion equation
210,549.12 : 290,556.09 = 115,054.08 : x - Step 2: Convert to fraction form
210,549.12/290,556.09 = 115,054.08/x - Step 3: Cross multiply
210,549.12x = 290,556.09 × 115,054.08 - Step 4: Simplify right side
210,549.12x = 33,429,663,623.35 - Step 5: Solve for x
x = 33,429,663,623.35/210,549.12 - Step 6: Final answer
x = 158,773.70
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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.