Finding the Fourth Proportional to 347,319.80, 520,979.70 and 207,351.80
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Solution
The fourth proportional to 347,319.80, 520,979.70 and 207,351.80 is: 311,027.70
Step by Step Solution
- Step 1: Write the proportion equation
347,319.80 : 520,979.70 = 207,351.80 : x - Step 2: Convert to fraction form
347,319.80/520,979.70 = 207,351.80/x - Step 3: Cross multiply
347,319.80x = 520,979.70 × 207,351.80 - Step 4: Simplify right side
347,319.80x = 108,026,078,558.46 - Step 5: Solve for x
x = 108,026,078,558.46/347,319.80 - Step 6: Final answer
x = 311,027.70
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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.