Finding the Fourth Proportional to 189,038.22, 260,884.35 and 104,155.26
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Solution
The fourth proportional to 189,038.22, 260,884.35 and 104,155.26 is: 143,740.65
Step by Step Solution
- Step 1: Write the proportion equation
189,038.22 : 260,884.35 = 104,155.26 : x - Step 2: Convert to fraction form
189,038.22/260,884.35 = 104,155.26/x - Step 3: Cross multiply
189,038.22x = 260,884.35 × 104,155.26 - Step 4: Simplify right side
189,038.22x = 27,172,477,304.18 - Step 5: Solve for x
x = 27,172,477,304.18/189,038.22 - Step 6: Final answer
x = 143,740.65
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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.