Finding the Fourth Proportional to 318,923.48, 478,144.68 and 192,533.68
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Solution
The fourth proportional to 318,923.48, 478,144.68 and 192,533.68 is: 288,655.31
Step by Step Solution
- Step 1: Write the proportion equation
318,923.48 : 478,144.68 = 192,533.68 : x - Step 2: Convert to fraction form
318,923.48/478,144.68 = 192,533.68/x - Step 3: Cross multiply
318,923.48x = 478,144.68 × 192,533.68 - Step 4: Simplify right side
318,923.48x = 92,058,957,387.04 - Step 5: Solve for x
x = 92,058,957,387.04/318,923.48 - Step 6: Final answer
x = 288,655.31
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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.