Finding the Fourth Proportional to 343,451.70, 515,177.55 and 156,827.70
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Solution
The fourth proportional to 343,451.70, 515,177.55 and 156,827.70 is: 235,241.55
Step by Step Solution
- Step 1: Write the proportion equation
343,451.70 : 515,177.55 = 156,827.70 : x - Step 2: Convert to fraction form
343,451.70/515,177.55 = 156,827.70/x - Step 3: Cross multiply
343,451.70x = 515,177.55 × 156,827.70 - Step 4: Simplify right side
343,451.70x = 80,794,110,258.14 - Step 5: Solve for x
x = 80,794,110,258.14/343,451.70 - Step 6: Final answer
x = 235,241.55
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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.