Finding the Fourth Proportional to 347,208.15, 520,721.08 and 147,425.70
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Solution
The fourth proportional to 347,208.15, 520,721.08 and 147,425.70 is: 221,099.85
Step by Step Solution
- Step 1: Write the proportion equation
347,208.15 : 520,721.08 = 147,425.70 : x - Step 2: Convert to fraction form
347,208.15/520,721.08 = 147,425.70/x - Step 3: Cross multiply
347,208.15x = 520,721.08 × 147,425.70 - Step 4: Simplify right side
347,208.15x = 76,767,669,723.76 - Step 5: Solve for x
x = 76,767,669,723.76/347,208.15 - Step 6: Final answer
x = 221,099.85
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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.