Finding the Fourth Proportional to 242,140.21, 334,157.96 and 134,720.26
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Solution
The fourth proportional to 242,140.21, 334,157.96 and 134,720.26 is: 185,916.45
Step by Step Solution
- Step 1: Write the proportion equation
242,140.21 : 334,157.96 = 134,720.26 : x - Step 2: Convert to fraction form
242,140.21/334,157.96 = 134,720.26/x - Step 3: Cross multiply
242,140.21x = 334,157.96 × 134,720.26 - Step 4: Simplify right side
242,140.21x = 45,017,847,252.27 - Step 5: Solve for x
x = 45,017,847,252.27/242,140.21 - Step 6: Final answer
x = 185,916.45
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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.