Finding the Fourth Proportional to 251,598.96, 347,201.64 and 138,423.60
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Solution
The fourth proportional to 251,598.96, 347,201.64 and 138,423.60 is: 191,021.86
Step by Step Solution
- Step 1: Write the proportion equation
251,598.96 : 347,201.64 = 138,423.60 : x - Step 2: Convert to fraction form
251,598.96/347,201.64 = 138,423.60/x - Step 3: Cross multiply
251,598.96x = 347,201.64 × 138,423.60 - Step 4: Simplify right side
251,598.96x = 48,060,900,934.70 - Step 5: Solve for x
x = 48,060,900,934.70/251,598.96 - Step 6: Final answer
x = 191,021.86
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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.