Finding the Fourth Proportional to 407,030.62, 610,638.93 and 140,790.91
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Solution
The fourth proportional to 407,030.62, 610,638.93 and 140,790.91 is: 211,218.53
Step by Step Solution
- Step 1: Write the proportion equation
407,030.62 : 610,638.93 = 140,790.91 : x - Step 2: Convert to fraction form
407,030.62/610,638.93 = 140,790.91/x - Step 3: Cross multiply
407,030.62x = 610,638.93 × 140,790.91 - Step 4: Simplify right side
407,030.62x = 85,972,410,636.13 - Step 5: Solve for x
x = 85,972,410,636.13/407,030.62 - Step 6: Final answer
x = 211,218.53
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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.