Finding the Fourth Proportional to 216,822.24, 299,227.23 and 121,328.10
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Solution
The fourth proportional to 216,822.24, 299,227.23 and 121,328.10 is: 167,439.79
Step by Step Solution
- Step 1: Write the proportion equation
216,822.24 : 299,227.23 = 121,328.10 : x - Step 2: Convert to fraction form
216,822.24/299,227.23 = 121,328.10/x - Step 3: Cross multiply
216,822.24x = 299,227.23 × 121,328.10 - Step 4: Simplify right side
216,822.24x = 36,304,671,284.16 - Step 5: Solve for x
x = 36,304,671,284.16/216,822.24 - Step 6: Final answer
x = 167,439.79
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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.