Finding the Fourth Proportional to 190,368.09, 262,809.83 and 121,526.79
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Solution
The fourth proportional to 190,368.09, 262,809.83 and 121,526.79 is: 167,772.00
Step by Step Solution
- Step 1: Write the proportion equation
190,368.09 : 262,809.83 = 121,526.79 : x - Step 2: Convert to fraction form
190,368.09/262,809.83 = 121,526.79/x - Step 3: Cross multiply
190,368.09x = 262,809.83 × 121,526.79 - Step 4: Simplify right side
190,368.09x = 31,938,434,412.71 - Step 5: Solve for x
x = 31,938,434,412.71/190,368.09 - Step 6: Final answer
x = 167,772.00
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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.