Finding the Fourth Proportional to 347,923.80, 521,885.70 and 207,955.80
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Solution
The fourth proportional to 347,923.80, 521,885.70 and 207,955.80 is: 311,933.70
Step by Step Solution
- Step 1: Write the proportion equation
347,923.80 : 521,885.70 = 207,955.80 : x - Step 2: Convert to fraction form
347,923.80/521,885.70 = 207,955.80/x - Step 3: Cross multiply
347,923.80x = 521,885.70 × 207,955.80 - Step 4: Simplify right side
347,923.80x = 108,529,158,252.06 - Step 5: Solve for x
x = 108,529,158,252.06/347,923.80 - Step 6: Final answer
x = 311,933.70
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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.