Finding the Fourth Proportional to 210,517.36, 290,513.51 and 115,024.74
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Solution
The fourth proportional to 210,517.36, 290,513.51 and 115,024.74 is: 158,733.90
Step by Step Solution
- Step 1: Write the proportion equation
210,517.36 : 290,513.51 = 115,024.74 : x - Step 2: Convert to fraction form
210,517.36/290,513.51 = 115,024.74/x - Step 3: Cross multiply
210,517.36x = 290,513.51 × 115,024.74 - Step 4: Simplify right side
210,517.36x = 33,416,240,954.24 - Step 5: Solve for x
x = 33,416,240,954.24/210,517.36 - Step 6: Final answer
x = 158,733.90
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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.