Finding the Fourth Proportional to 311,416.62, 467,125.23 and 86,777.70
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Solution
The fourth proportional to 311,416.62, 467,125.23 and 86,777.70 is: 130,166.63
Step by Step Solution
- Step 1: Write the proportion equation
311,416.62 : 467,125.23 = 86,777.70 : x - Step 2: Convert to fraction form
311,416.62/467,125.23 = 86,777.70/x - Step 3: Cross multiply
311,416.62x = 467,125.23 × 86,777.70 - Step 4: Simplify right side
311,416.62x = 40,536,053,071.37 - Step 5: Solve for x
x = 40,536,053,071.37/311,416.62 - Step 6: Final answer
x = 130,166.63
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.