Finding the Fourth Proportional to 405,814.08, 560,202.78 and 242,528.18
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Solution
The fourth proportional to 405,814.08, 560,202.78 and 242,528.18 is: 334,796.07
Step by Step Solution
- Step 1: Write the proportion equation
405,814.08 : 560,202.78 = 242,528.18 : x - Step 2: Convert to fraction form
405,814.08/560,202.78 = 242,528.18/x - Step 3: Cross multiply
405,814.08x = 560,202.78 × 242,528.18 - Step 4: Simplify right side
405,814.08x = 135,864,960,664.34 - Step 5: Solve for x
x = 135,864,960,664.34/405,814.08 - Step 6: Final answer
x = 334,796.07
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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.