Finding the Fourth Proportional to 216,966.48, 299,445.18 and 121,479.33
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Solution
The fourth proportional to 216,966.48, 299,445.18 and 121,479.33 is: 167,659.08
Step by Step Solution
- Step 1: Write the proportion equation
216,966.48 : 299,445.18 = 121,479.33 : x - Step 2: Convert to fraction form
216,966.48/299,445.18 = 121,479.33/x - Step 3: Cross multiply
216,966.48x = 299,445.18 × 121,479.33 - Step 4: Simplify right side
216,966.48x = 36,376,399,838.13 - Step 5: Solve for x
x = 36,376,399,838.13/216,966.48 - Step 6: Final answer
x = 167,659.08
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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.