Finding the Fourth Proportional to 438,433.80, 657,650.70 and 122,849.70
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Solution
The fourth proportional to 438,433.80, 657,650.70 and 122,849.70 is: 184,274.55
Step by Step Solution
- Step 1: Write the proportion equation
438,433.80 : 657,650.70 = 122,849.70 : x - Step 2: Convert to fraction form
438,433.80/657,650.70 = 122,849.70/x - Step 3: Cross multiply
438,433.80x = 657,650.70 × 122,849.70 - Step 4: Simplify right side
438,433.80x = 80,792,191,199.79 - Step 5: Solve for x
x = 80,792,191,199.79/438,433.80 - Step 6: Final answer
x = 184,274.55
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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.