Finding the Fourth Proportional to 251,683.76, 347,322.84 and 138,506.42
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Solution
The fourth proportional to 251,683.76, 347,322.84 and 138,506.42 is: 191,138.45
Step by Step Solution
- Step 1: Write the proportion equation
251,683.76 : 347,322.84 = 138,506.42 : x - Step 2: Convert to fraction form
251,683.76/347,322.84 = 138,506.42/x - Step 3: Cross multiply
251,683.76x = 347,322.84 × 138,506.42 - Step 4: Simplify right side
251,683.76x = 48,106,443,152.63 - Step 5: Solve for x
x = 48,106,443,152.63/251,683.76 - Step 6: Final answer
x = 191,138.45
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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.