Finding the Fourth Proportional to 216,975.74, 299,423.16 and 121,485.84
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Solution
The fourth proportional to 216,975.74, 299,423.16 and 121,485.84 is: 167,648.58
Step by Step Solution
- Step 1: Write the proportion equation
216,975.74 : 299,423.16 = 121,485.84 : x - Step 2: Convert to fraction form
216,975.74/299,423.16 = 121,485.84/x - Step 3: Cross multiply
216,975.74x = 299,423.16 × 121,485.84 - Step 4: Simplify right side
216,975.74x = 36,375,674,108.05 - Step 5: Solve for x
x = 36,375,674,108.05/216,975.74 - Step 6: Final answer
x = 167,648.58
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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.