Finding the Fourth Proportional to 318,553.81, 439,690.62 and 187,845.62
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Solution
The fourth proportional to 318,553.81, 439,690.62 and 187,845.62 is: 259,277.88
Step by Step Solution
- Step 1: Write the proportion equation
318,553.81 : 439,690.62 = 187,845.62 : x - Step 2: Convert to fraction form
318,553.81/439,690.62 = 187,845.62/x - Step 3: Cross multiply
318,553.81x = 439,690.62 × 187,845.62 - Step 4: Simplify right side
318,553.81x = 82,593,956,182.86 - Step 5: Solve for x
x = 82,593,956,182.86/318,553.81 - Step 6: Final answer
x = 259,277.88
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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.