Finding the Fourth Proportional to 242,705.21, 334,934.74 and 135,282.05
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Solution
The fourth proportional to 242,705.21, 334,934.74 and 135,282.05 is: 186,690.10
Step by Step Solution
- Step 1: Write the proportion equation
242,705.21 : 334,934.74 = 135,282.05 : x - Step 2: Convert to fraction form
242,705.21/334,934.74 = 135,282.05/x - Step 3: Cross multiply
242,705.21x = 334,934.74 × 135,282.05 - Step 4: Simplify right side
242,705.21x = 45,310,658,243.42 - Step 5: Solve for x
x = 45,310,658,243.42/242,705.21 - Step 6: Final answer
x = 186,690.10
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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.