Finding the Fourth Proportional to 211,030.09, 291,210.46 and 115,518.49
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Solution
The fourth proportional to 211,030.09, 291,210.46 and 115,518.49 is: 159,409.46
Step by Step Solution
- Step 1: Write the proportion equation
211,030.09 : 291,210.46 = 115,518.49 : x - Step 2: Convert to fraction form
211,030.09/291,210.46 = 115,518.49/x - Step 3: Cross multiply
211,030.09x = 291,210.46 × 115,518.49 - Step 4: Simplify right side
211,030.09x = 33,640,192,611.41 - Step 5: Solve for x
x = 33,640,192,611.41/211,030.09 - Step 6: Final answer
x = 159,409.46
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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.