Finding the Fourth Proportional to 368,431.80, 552,647.70 and 119,113.80
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Solution
The fourth proportional to 368,431.80, 552,647.70 and 119,113.80 is: 178,670.70
Step by Step Solution
- Step 1: Write the proportion equation
368,431.80 : 552,647.70 = 119,113.80 : x - Step 2: Convert to fraction form
368,431.80/552,647.70 = 119,113.80/x - Step 3: Cross multiply
368,431.80x = 552,647.70 × 119,113.80 - Step 4: Simplify right side
368,431.80x = 65,827,967,608.26 - Step 5: Solve for x
x = 65,827,967,608.26/368,431.80 - Step 6: Final answer
x = 178,670.70
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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.