Finding the Fourth Proportional to 243,646.87, 336,215.61 and 141,665.09
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Solution
The fourth proportional to 243,646.87, 336,215.61 and 141,665.09 is: 195,487.90
Step by Step Solution
- Step 1: Write the proportion equation
243,646.87 : 336,215.61 = 141,665.09 : x - Step 2: Convert to fraction form
243,646.87/336,215.61 = 141,665.09/x - Step 3: Cross multiply
243,646.87x = 336,215.61 × 141,665.09 - Step 4: Simplify right side
243,646.87x = 47,630,015,805.80 - Step 5: Solve for x
x = 47,630,015,805.80/243,646.87 - Step 6: Final answer
x = 195,487.90
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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.