Finding the Fourth Proportional to 260,857.62, 390,575.04 and 197,486.05
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Solution
The fourth proportional to 260,857.62, 390,575.04 and 197,486.05 is: 295,690.51
Step by Step Solution
- Step 1: Write the proportion equation
260,857.62 : 390,575.04 = 197,486.05 : x - Step 2: Convert to fraction form
260,857.62/390,575.04 = 197,486.05/x - Step 3: Cross multiply
260,857.62x = 390,575.04 × 197,486.05 - Step 4: Simplify right side
260,857.62x = 77,133,121,878.19 - Step 5: Solve for x
x = 77,133,121,878.19/260,857.62 - Step 6: Final answer
x = 295,690.51
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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.