Finding the Fourth Proportional to 194,309.55, 268,128.99 and 143,350.65
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Solution
The fourth proportional to 194,309.55, 268,128.99 and 143,350.65 is: 197,810.48
Step by Step Solution
- Step 1: Write the proportion equation
194,309.55 : 268,128.99 = 143,350.65 : x - Step 2: Convert to fraction form
194,309.55/268,128.99 = 143,350.65/x - Step 3: Cross multiply
194,309.55x = 268,128.99 × 143,350.65 - Step 4: Simplify right side
194,309.55x = 38,436,465,000.34 - Step 5: Solve for x
x = 38,436,465,000.34/194,309.55 - Step 6: Final answer
x = 197,810.48
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1.5x scale
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.