Finding the Fourth Proportional to 251,859.84, 347,559.84 and 138,683.52
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Solution
The fourth proportional to 251,859.84, 347,559.84 and 138,683.52 is: 191,379.55
Step by Step Solution
- Step 1: Write the proportion equation
251,859.84 : 347,559.84 = 138,683.52 : x - Step 2: Convert to fraction form
251,859.84/347,559.84 = 138,683.52/x - Step 3: Cross multiply
251,859.84x = 347,559.84 × 138,683.52 - Step 4: Simplify right side
251,859.84x = 48,200,822,021.84 - Step 5: Solve for x
x = 48,200,822,021.84/251,859.84 - Step 6: Final answer
x = 191,379.55
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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.