Finding the Fourth Proportional to 251,948.99, 347,689.58 and 138,771.74
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Solution
The fourth proportional to 251,948.99, 347,689.58 and 138,771.74 is: 191,504.99
Step by Step Solution
- Step 1: Write the proportion equation
251,948.99 : 347,689.58 = 138,771.74 : x - Step 2: Convert to fraction form
251,948.99/347,689.58 = 138,771.74/x - Step 3: Cross multiply
251,948.99x = 347,689.58 × 138,771.74 - Step 4: Simplify right side
251,948.99x = 48,249,486,604.95 - Step 5: Solve for x
x = 48,249,486,604.95/251,948.99 - Step 6: Final answer
x = 191,504.99
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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.