Finding the Fourth Proportional to 212,313.54, 293,000.74 and 121,686.98
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Solution
The fourth proportional to 212,313.54, 293,000.74 and 121,686.98 is: 167,932.65
Step by Step Solution
- Step 1: Write the proportion equation
212,313.54 : 293,000.74 = 121,686.98 : x - Step 2: Convert to fraction form
212,313.54/293,000.74 = 121,686.98/x - Step 3: Cross multiply
212,313.54x = 293,000.74 × 121,686.98 - Step 4: Simplify right side
212,313.54x = 35,654,375,188.37 - Step 5: Solve for x
x = 35,654,375,188.37/212,313.54 - Step 6: Final answer
x = 167,932.65
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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.