Finding the Fourth Proportional to 242,705.36, 334,934.96 and 135,282.21
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Solution
The fourth proportional to 242,705.36, 334,934.96 and 135,282.21 is: 186,690.32
Step by Step Solution
- Step 1: Write the proportion equation
242,705.36 : 334,934.96 = 135,282.21 : x - Step 2: Convert to fraction form
242,705.36/334,934.96 = 135,282.21/x - Step 3: Cross multiply
242,705.36x = 334,934.96 × 135,282.21 - Step 4: Simplify right side
242,705.36x = 45,310,741,595.06 - Step 5: Solve for x
x = 45,310,741,595.06/242,705.36 - Step 6: Final answer
x = 186,690.32
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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.