Finding the Fourth Proportional to 280,990.99, 387,767.96 and 158,484.97
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Solution
The fourth proportional to 280,990.99, 387,767.96 and 158,484.97 is: 218,709.48
Step by Step Solution
- Step 1: Write the proportion equation
280,990.99 : 387,767.96 = 158,484.97 : x - Step 2: Convert to fraction form
280,990.99/387,767.96 = 158,484.97/x - Step 3: Cross multiply
280,990.99x = 387,767.96 × 158,484.97 - Step 4: Simplify right side
280,990.99x = 61,455,393,507.56 - Step 5: Solve for x
x = 61,455,393,507.56/280,990.99 - Step 6: Final answer
x = 218,709.48
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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.