Finding the Fourth Proportional to 216,889.08, 299,306.88 and 121,395.78
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Solution
The fourth proportional to 216,889.08, 299,306.88 and 121,395.78 is: 167,526.15
Step by Step Solution
- Step 1: Write the proportion equation
216,889.08 : 299,306.88 = 121,395.78 : x - Step 2: Convert to fraction form
216,889.08/299,306.88 = 121,395.78/x - Step 3: Cross multiply
216,889.08x = 299,306.88 × 121,395.78 - Step 4: Simplify right side
216,889.08x = 36,334,592,156.97 - Step 5: Solve for x
x = 36,334,592,156.97/216,889.08 - Step 6: Final answer
x = 167,526.15
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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.