Finding the Fourth Proportional to 347,056.18, 478,988.85 and 219,743.62
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Solution
The fourth proportional to 347,056.18, 478,988.85 and 219,743.62 is: 303,278.69
Step by Step Solution
- Step 1: Write the proportion equation
347,056.18 : 478,988.85 = 219,743.62 : x - Step 2: Convert to fraction form
347,056.18/478,988.85 = 219,743.62/x - Step 3: Cross multiply
347,056.18x = 478,988.85 × 219,743.62 - Step 4: Simplify right side
347,056.18x = 105,254,743,838.64 - Step 5: Solve for x
x = 105,254,743,838.64/347,056.18 - Step 6: Final answer
x = 303,278.69
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.