Finding the Fourth Proportional to 251,948.74, 347,689.25 and 138,771.49
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Solution
The fourth proportional to 251,948.74, 347,689.25 and 138,771.49 is: 191,504.65
Step by Step Solution
- Step 1: Write the proportion equation
251,948.74 : 347,689.25 = 138,771.49 : x - Step 2: Convert to fraction form
251,948.74/347,689.25 = 138,771.49/x - Step 3: Cross multiply
251,948.74x = 347,689.25 × 138,771.49 - Step 4: Simplify right side
251,948.74x = 48,249,353,541.04 - Step 5: Solve for x
x = 48,249,353,541.04/251,948.74 - Step 6: Final answer
x = 191,504.65
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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.