Finding the Fourth Proportional to 256,534.80, 384,911.55 and 161,837.70
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Solution
The fourth proportional to 256,534.80, 384,911.55 and 161,837.70 is: 242,825.53
Step by Step Solution
- Step 1: Write the proportion equation
256,534.80 : 384,911.55 = 161,837.70 : x - Step 2: Convert to fraction form
256,534.80/384,911.55 = 161,837.70/x - Step 3: Cross multiply
256,534.80x = 384,911.55 × 161,837.70 - Step 4: Simplify right side
256,534.80x = 62,293,199,955.44 - Step 5: Solve for x
x = 62,293,199,955.44/256,534.80 - Step 6: Final answer
x = 242,825.53
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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.