Finding the Fourth Proportional to 194,683.21, 268,720.28 and 114,128.17
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Solution
The fourth proportional to 194,683.21, 268,720.28 and 114,128.17 is: 157,530.55
Step by Step Solution
- Step 1: Write the proportion equation
194,683.21 : 268,720.28 = 114,128.17 : x - Step 2: Convert to fraction form
194,683.21/268,720.28 = 114,128.17/x - Step 3: Cross multiply
194,683.21x = 268,720.28 × 114,128.17 - Step 4: Simplify right side
194,683.21x = 30,668,553,798.29 - Step 5: Solve for x
x = 30,668,553,798.29/194,683.21 - Step 6: Final answer
x = 157,530.55
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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.