Finding the Fourth Proportional to 365,613.80, 548,420.70 and 318,957.80
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Solution
The fourth proportional to 365,613.80, 548,420.70 and 318,957.80 is: 478,436.70
Step by Step Solution
- Step 1: Write the proportion equation
365,613.80 : 548,420.70 = 318,957.80 : x - Step 2: Convert to fraction form
365,613.80/548,420.70 = 318,957.80/x - Step 3: Cross multiply
365,613.80x = 548,420.70 × 318,957.80 - Step 4: Simplify right side
365,613.80x = 174,923,059,946.46 - Step 5: Solve for x
x = 174,923,059,946.46/365,613.80 - Step 6: Final answer
x = 478,436.70
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1.5x scale
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.