Finding the Fourth Proportional to 251,949.74, 347,690.61 and 138,772.49
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Solution
The fourth proportional to 251,949.74, 347,690.61 and 138,772.49 is: 191,506.02
Step by Step Solution
- Step 1: Write the proportion equation
251,949.74 : 347,690.61 = 138,772.49 : x - Step 2: Convert to fraction form
251,949.74/347,690.61 = 138,772.49/x - Step 3: Cross multiply
251,949.74x = 347,690.61 × 138,772.49 - Step 4: Simplify right side
251,949.74x = 48,249,889,960.87 - Step 5: Solve for x
x = 48,249,889,960.87/251,949.74 - Step 6: Final answer
x = 191,506.02
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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.