Finding the Fourth Proportional to 207,864.05, 286,851.20 and 117,220.79
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Solution
The fourth proportional to 207,864.05, 286,851.20 and 117,220.79 is: 161,764.02
Step by Step Solution
- Step 1: Write the proportion equation
207,864.05 : 286,851.20 = 117,220.79 : x - Step 2: Convert to fraction form
207,864.05/286,851.20 = 117,220.79/x - Step 3: Cross multiply
207,864.05x = 286,851.20 × 117,220.79 - Step 4: Simplify right side
207,864.05x = 33,624,924,407.47 - Step 5: Solve for x
x = 33,624,924,407.47/207,864.05 - Step 6: Final answer
x = 161,764.02
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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.