Finding the Fourth Proportional to 216,859.02, 299,272.17 and 121,365.49
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Solution
The fourth proportional to 216,859.02, 299,272.17 and 121,365.49 is: 167,488.14
Step by Step Solution
- Step 1: Write the proportion equation
216,859.02 : 299,272.17 = 121,365.49 : x - Step 2: Convert to fraction form
216,859.02/299,272.17 = 121,365.49/x - Step 3: Cross multiply
216,859.02x = 299,272.17 × 121,365.49 - Step 4: Simplify right side
216,859.02x = 36,321,313,555.41 - Step 5: Solve for x
x = 36,321,313,555.41/216,859.02 - Step 6: Final answer
x = 167,488.14
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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.