Finding the Fourth Proportional to 347,103.80, 520,655.70 and 207,135.80
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Solution
The fourth proportional to 347,103.80, 520,655.70 and 207,135.80 is: 310,703.70
Step by Step Solution
- Step 1: Write the proportion equation
347,103.80 : 520,655.70 = 207,135.80 : x - Step 2: Convert to fraction form
347,103.80/520,655.70 = 207,135.80/x - Step 3: Cross multiply
347,103.80x = 520,655.70 × 207,135.80 - Step 4: Simplify right side
347,103.80x = 107,846,434,944.06 - Step 5: Solve for x
x = 107,846,434,944.06/347,103.80 - Step 6: Final answer
x = 310,703.70
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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.