Finding the Fourth Proportional to 348,679.64, 522,816.21 and 135,198.14
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Solution
The fourth proportional to 348,679.64, 522,816.21 and 135,198.14 is: 202,718.39
Step by Step Solution
- Step 1: Write the proportion equation
348,679.64 : 522,816.21 = 135,198.14 : x - Step 2: Convert to fraction form
348,679.64/522,816.21 = 135,198.14/x - Step 3: Cross multiply
348,679.64x = 522,816.21 × 135,198.14 - Step 4: Simplify right side
348,679.64x = 70,683,776,539.77 - Step 5: Solve for x
x = 70,683,776,539.77/348,679.64 - Step 6: Final answer
x = 202,718.39
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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.